Publikationen

Publications

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2017

A. Ortiz, H. Al-Shatri, X. Li, T. Weber & A. Klein, „Reinforcement Learning for Energy Harvesting Decode-and-Forward Two-Hop Communications,“ IEEE Transactions on Green Communications and Networking, 2017 (Accepted).

D. Papsdorf, Y. C. B. Silva & A. Klein, „Multicast Interference Alignment in a Multi-Group Multi-Way Relaying Network,“ in Proc. IEEE International Conference on Communications (ICC), Paris, France, May 2017.

M. Fasil, S. Müller, H. Al-Shatri & A. Klein, „Exploiting Caching and Cross-Layer Transitions for Content Delivery in Wireless Multihop Networks,“ in Proc. 2nd Content Caching and Delivery in Wireless Networks Workshop (CCDWN), Paris, France, May 2017.

S. Mueller, O. Atan, M. van der Schaar & A. Klein, „Context-Aware Proactive Content Caching with Service Differentiation in Wireless Networks,“ IEEE Transactions on Wireless Communications, vol. 16, pp. 1024-1036, Feb 2017.

L. Baumgaertner, P. Graubner, J. Hoechst & A. Klein, „The More You Speak, the Less You Hear: On Dynamic Announcement Intervals in Wireless On-demand Networks,“ in Proc. 13th IEEE Wireless On-Demand Network Systems and Services Conference (WONS), Jackson Hole, Wyoming, USA, Feb 2017.

A. Buzuverov, H. Al Shatri & A. Klein, „Exploiting Additional Transmit Antennas for More Degrees of Freedom in 3-User MIMO Interference Channel with Delayed CSIT,“ in Proc. 11th Internation ITG Conference on Systems, Communications and Coding (SCC), Hamburg, Germany, Feb 2017.

H. Le, H. Al Shatri & A. Klein, „Optimal Joint Power Allocation and Task Splitting in Wireless Distributed Computing,“ in Proc. 11th International ITG Conference on Systems, Communications and Coding (SCC), Hamburg, Germany, Feb 2017.

X. Li, A. Ortiz, H. Al Shatri, A. Klein & T. Weber, „Delay-Constrained Data Transmission for Energy Harvesting Transmitter,“ in Proc. 11th International ITG Conference on Systems, Communications and Coding (SCC), Hamburg, Germany, Feb 2017.

P. Semov, H. Al Shatri, K. Tonchev, V. Poulkov & A. Klein, „Implementation of Machine Learning for Autonomic Capabilities in Self-Organizing Heterogeneous Networks,“ Wireless Personal Communications, vol. 92, pp. 149-168, Jan 2017 (Online Publication).

N. Dandanov, H. Al Shatri, A. Klein & V. Poulkov, „Dynamic Self-Optimization of the Antenna Tilt for Best Trade-off Between Coverage and Capacity in Mobile Networks,“ Wireless Personal Communications, vol. 92, pp. 251–278, Jan 2017.

2016

A. Ortiz, H. Al-Shatri, X. Li, T. Weber & A. Klein, „A Learning Based Solution for Energy Harvesting Decode-and-Forward Two-Hop Communications,“ in Proc. IEEE Global Communications Conference (Globecom), Washington, USA, Dez 2016.

D. Kifle, „Adaptive Cellular Layout in Self-Organizing Networks using Acitve Antenna Systems,“ Ph.D. Thesis, Technische Universität Darmstadt, Darmstädter Dissertationen D17, Dec 2016.

M. Wichtlhuber, S. Buecker, R. Kluge, M. Mousavi & D. Hausheer, „Of Strategies and Structures: Motif-based Fingerprinting Analysis of Online Reputation Networks,“ in Proc. 41st Annual IEEE Conference on Local Computer Networks (LCN), Dubai, UAE, Nov 2016.

A. Buzuverov, H. Al-Shatri & A. Klein, „On the Achievable Degrees of Freedom of the MIMO X-Channel with Delayed CSIT,“ in Proc. IEEE Information Theory Workshop (ITW), Cambridge, United Kingdom, Sep 2016.

M. Fasil, H. Al-Shatri, S. Wilk & A. Klein, „A Network-Centric View on DASH in Wireless Multihop Networks,“ in Proc. IEEE 84th Vehicular Technology Conference (VTC 2016-Fall), Montréal, Canada, Sep 2016.

F. Hohmann & A. Klein, „Opportunistic forwarding using rateless codes in OFDMA multihop networks,“ in Proc. IEEE 84th Vehicular Technology Conference (VTC 2016-Fall), Montréal, Canada, Sep 2016.

D. Kifle, B. Wegmann, I. Viering & A. Klein, „Self Optimizing Network (SON) Framework for Automated Vertical Sectorization,“ in Proc. 27th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Valencia, Spain, Sep 2016.

D. Papsdorf, X. Li, T. Weber & A. Klein, „Inter-Subnetwork Interference Minimization in Partially Connected Two-Way Relaying Networks,“ in Proc. IEEE 84th Vehicular Technology Conference (VTC 2016-Fall), Montréal, Canada, Sep 2016.

R. SivaSiva Ganesan, H. Al-Shatri, X. Li, A. Klein & T. Weber, „Signals and Communication Technology,“ in Communications in Interference Limited Networks, Wolfgang Utschick (Ed.), Chapter Interference Alignment Aided by Non-Regenerative Relays, pp. 327-345, Springer Verlag, no. ISBN-978-3-319-22439-8, 2016.

H. Al-Shatri, S. Mueller & A. Klein, „Distributed Algorithm for Energy Efficient Multi-Hop Computation Offloading,“ in Proc. IEEE International Conference on Communications, Kuala Lumpur, Malaysia, May 2016.

H. Al-Shatri, X. Li, R. SivaSiva Ganesan, A. Klein & T. Weber, „Maximizing the Sum Rate in Cellular Networks Using Multi-Convex Optimization,“ IEEE Transactions on Wireless Communications, vol. 15, pp. 3199-3211, May 2016.

M. Mousavi, S. Mueller, H. Al-Shatri, B. Freisleben & A. Klein, „Multi-Hop Data Dissemination with Selfish Nodes: Optimal Decision and Fair Cost Allocation Based on the Shapley Value,“ in Proc. IEEE International Conference on Communications, Kuala Lumpur, Malaysia, May 2016.

S. Mueller, O. Atan, M. van der Schaar & A. Klein, „Smart Caching in Wireless Small Cell Networks via Contextual Multi-Armed Bandits,“ in Proc. IEEE International Conference on Communications (ICC), Kuala Lumpur, Malaysia, May 2016.

A. Ortiz, H. Al-Shatri, X. Li, T. Weber & A. Klein, „Reinforcement Learning for Energy Harvesting Point-to-Point Communications,“ in Proc. IEEE International Conference on Communications, Kuala Lumpur, Malaysia, May 2016.

X. Li, D. Papsdorf, A. Klein & T. Weber, „An Interference Management Scheme using Partial CSI for Partially Connected Cellular Networks,“ in Proc. 20th International ITG Workshop on Smart Antennas (WSA), Munich, Germany, Mar 2016.

M. Mousavi, H. Al-Shatri, O. Hinz & A. Klein, „Incorporating User Willingness for Message Forwarding in Multi-Hop Content Distribution Scenarios,“ in Proc. 20th International ITG Workshop on Smart Antennas (WSA), Munich, Germany, Mar 2016.

2015

A. Buzuverov, H. Al Shatri & A. Klein, „On the Degrees of Freedom of the Three-User MIMO Interference Channel with Delayed CSIT,“ in Proc. IEEE Information Theory Workshop, Jeju Island, Korea, Oct 2015.

A. Loch, M. Hollick, A. Kühne & A. Klein, „OFDMA for wireless multihop networks: From theory to practice,“ Pervasive and Mobile Computing, vol. 23, pp. 104-121, Oct 2015.

A. Frömmgen, S. Sadasivam, S. Müller, A. Klein & A. Buchmann, „Poster: Use your Senses: A Smooth Multipath TCP WiFi/Mobile Handover,“ in Proc. 21st Annual International Conference on Mobile Computing and Networking MobiCom, Paris, France, Sep 2015.

D. Kifle, B. Wegmann, F. Tesema, I. Viering & A. Klein, „Enhancing Vertical Sectorization Performance with eICIC in AAS Based LTE-A Deployment,“ in Proc. IEEE 82nd Vehicular Technology Conference: VTC, Boston, USA, Sep 2015.

D. Papsdorf, X. Li, T. Weber & A. Klein, „Interference Alignment in Partially Connected Multi-User Two-Way Relay Networks,“ in Proc. IEEE 26th Annual International Symposium on Personal, Indoor and Mobile Radio Communications PIMRC, Hong Kong, China, Aug 2015.

A. Ortiz, H. Al Shatri, X. Li, T. Weber & A. Klein, „Throughput Maximization in Two-Hop Energy Harvesting Communications,“ in Proc. IEEE Twelfth International Symposium on Wireless Communication Systems ISWCS, Brussels, Belgium, Aug 2015.

S. Müller, H. Al Shatri, M. Wichtlhuber, D. Hausheer & A. Klein, „Computation Offloading in Wireless Multi-Hop Networks: Energy Minimization via Multi-Dimensional Knapsack Problem,“ in Proc. IEEE 26th Annual International Symposium on Personal, Indoor and Mobile Radio Communications PIMRC, Hong Kong, China, Aug 2015.

M. Mousavi, H. Al Shatri, H. Q. Le, A. Kühne, M. Wichtlhuber, D. Hausheer & A. Klein, „Game-based Multi-hop Broadcast Including Power Control and MRC in Wireless Networks,“ in Proc. IEEE 26th Annual International Symposium on Personal, Indoor and Mobile Radio Communications PIMRC, Hong Kong, China, Aug 2015.

M. Mousavi, H. Al Shatri, M. Wichtlhuber, D. Hausheer & A. Klein, „Energy-Efficient Data Dissemination in Ad Hoc Networks: Mechanism Design with Potential Game,“ in Proc. IEEE Twelfth International Symposium on Wireless Communication Systems ISWCS, Brussels, Belgium, Aug 2015.

X. Li, D. Papsdorf, A. Klein & T. Weber, „An Interference Alignment Scheme using Partial CSI for Large Partially Connected Relay Networks,“ in Proc. IEEE Twelfth International Symposium on Wireless Communication Systems ISWCS, Brussels, Belgium, Aug 2015.

F. Hohmann, A. Kühne, A. Klein, A. Loch & M. Hollick, „Corridor-based Routing: Constructing and Maintaining Stable Support-Structures for Wireless Multihop Transmissions,“ in Proc. IEEE Twelfth International Symposium on Wireless Communication Systems ISWCS, Brussels, Belgium, Aug 2015.

M. Fasil, H. Al Shatri, S. Wilk & A. Klein, „Application-Aware Cross-Layer Framework: Video Content Distribution in Wireless Multihop Networks,“ in Proc. IEEE 26th Annual International Symposium on Personal, Indoor and Mobile Radio Communications PIMRC, Hong Kong, China, Aug 2015.

M. Wichtlhuber, S. Dargutev, S. Müller, A. Klein & D. Hausheer, „QTrade: A Quality of Experience Based Peercasting Trading Scheme,“ in Proc. IEEE International Conference on Peer-to-Peer Computing P2P, Cambridge, USA, Aug 2015.

N. Franzen, „Spectrally Efficient Beaconing for Aeronautical Applications,“ Ph.D. Thesis, Technische Universität Darmstadt, Darmstädter Dissertationen D17, Jul 2015.

W. Kifle, B. Wegmann, I. Viering & A. Klein, „Study on Impact of Vertical Sectorization on Mobility and Existing MRO Performance,“ in Proc. European Conference on Networks and Communications EuCNC, Paris, France, Jun 2015.

M. Wichtlhuber, M. Mousavi, H. Al Shatri, A. Klein & D. Hausheer, „Towards a Framework for Cross Layer Incentive Mechanisms for Multihop Video Dissemination,“ in Proc. IEEE 16th International Symposium on a World of Wireless, Mobile and Multimedia Networks WoWMoM, Boston, MA, USA, Jun 2015.

D. Papsdorf, A. Klein, X. Li & T. Weber, „Interference alignment for high rate transmission in partially connected multi-user two-way relay networks:,“ in Proc. 25. Sitzung der ITG-Fachgruppe Angewandte Informationstheorie, Hamburg, Germany, Apr 2015.

A. Schad, S. Alabed, H. Degenhardt & M. Pesavento, „Bi-Directional Differential Beamforming for Multi-Antenna Relaying,“ in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Brisbane, Australia, Apr 2015.

X. Li, T. Weber, D. Papsdorf & A. Klein, „A relay-aided interference alignment scheme using partial CSI,“ in Proc. 25. Sitzung der ITG-Fachgruppe Angewandte Informationstheorie, Hamburg, Germany, Apr 2015.

R. SivaSiva Ganesan, „Relay-aided interference alignment for bi-directional communications in wireless networks,“ Ph.D. Thesis, Technische Universität Darmstadt, Darmstädter Dissertationen D17, Mar 2015.

W. Sarhan, „Receiver-based Protection against Time-varying Noise in xDSL Systems,“ Ph.D. Thesis, Technische Universität Darmstadt, Darmstädter Dissertationen D17, Mar 2015.

A. Ortiz, H. Degenhardt & A. Klein, „A Resource Requirement Aware Transmit Strategy for Non-Regenerative Multi-Way Relaying,“ in Proc. IEEE Wireless Communication and Networking Conference (WCNC), New Orleans, USA, Mar 2015.

X. Li, H. Al Shatri, R. Ganesan, D. Papsdorf, A. Klein & T. Weber, „Uplink-Downlink Duality of Interference Alignment in Cellular Relay Networks,“ in Proc. 10th International ITG Conference on Systems, Communications and Coding (SCC), Hamburg, Germany, Feb 2015.

A. Kuehne, H. Q. Le and M. Mousavi, M. Wichtlhuber, D. Hausheer & A. Klein, „Power Control in Wireless Broadcast Networks using Game Theory,“ in Proc. 10th International ITG Conference on Systems, Communications and Coding (SCC), Hamburg, Germany, Feb 2015.

K. Schmitz, P. Hasselbach, B. Ebisch, A. Klein, G. Pipa & R. Galuske, „Application of Parallel Factor Analysis (PARAFAC) to Electrophysiological Data,“ frontiers in Neuroinformatics, vol. 8, Jan 2015.

2014

H. Degenhardt, „Non-Regenerative Multi-Antenna Two-Way and Multi-Way Relaying,“ Ph.D. Thesis, Technische Universität Darmstadt, Darmstädter Dissertationen D17, Nov 2014.

D. Kifle, L. Gimenez, B. Wegmann & A. Klein, „Comparison and extension of Existing 3D Propagation Models with Real-World Effects Based on Ray-Tracing,“ Wireless Personal Communications, vol. 78, pp. 1719-1738, Oct 2014.

A. Loch, P. Quesada, M. Hollick, A. Kühne & A. Klein, „Building Cross-Layer Corridors in Wireless Multihop Networks,“ in Proc. IEEE International Conference on Mobile Ad hoc and Sensor Systems MASS, Philadelphia, USA, Oct 2014.

A. Loch, M. Hollick, A. Kühne & A. Klein, „Practical OFDMA for Corridor-based Routing in Wireless Multihop Networks,“ in Proc. Local Computer Networks Conference (LCN), Edmonton, Canada, Sep 2014 (Best Paper Award).

Z. Chen, A. Kuehne & A. Klein, „Randomized Gossip Protocol in Wireless Sensor Networks with Partial Sensor Involvement,“ in Proc. IEEE Eleventh International Symposium on Wireless Communication Systems (ISWCS), Barcelona, Spain, Aug 2014.

M. Fasil, A. Kühne & A. Klein, „Node Virtualization and Network Coding: Optimizing Data Rate in Wireless Multicast,“ in Proc. IEEE Eleventh International Symposium on Wireless Communication Systems (ISWCS), Barcelona, Spain, Aug 2014.

D. Kifle, B. Wegmann, I. Viering & A. Klein, „Mathematical Model for Vertical Sectorization (VS) in AAS Based LTE Deployment,“ in Proc. IEEE Eleventh International Symposium on Wireless Communication Systems (ISWCS), Barcelona, Spain, Aug 2014 (Best Paper Award).

A. Kuehne, A. Loch, T. Nitsche, J. Widmer, M. Hollick & A. Klein, „BER Enhancements for Practical Interference Alignment in the Frequency Domain,“ in Proc. IEEE Eleventh International Symposium on Wireless Communication Systems (ISWCS), Barcelona, Spain, Aug 2014.

X. Li, H. Al-Shatri, R. SivaSiva Ganesan, D. Papsdorf, A. Klein & T. Weber, „Relay-Aided Interference Alignment for Multiple Partially Connected Subnetworks,“ in Proc. 11th International Symposium on Wireless Communications Systems (ISWCS), Barcelona, Spain, Aug 2014.

D. Papsdorf, R. SivaSiva Ganesan, X. Li, T. Weber & A. Klein, „Combining Interference Alignment and Two-Way Relaying in Partially Connected Networks with only Local CSI,“ in Proc. IEEE Eleventh International Symposium on Wireless Communication Systems (ISWCS), Barcelona, Spain, Aug 2014.

D. Kifle, L. Gimenez, B. Wegmann & A. Klein, „Comparison and extension of Existing 3D Propagation Models with Real-World Effects Based on Ray-Tracing,“ Wireless Personal Communications, Jul 2014.

D. W. Kifle, B. Wegmann, P. Eskelinen, I. Viering & A. Klein, „Super-Cell From Inner Sectors of Active Antenna System (AAS) – Vertical Sectorization,“ in Proc. IEEE International Conference on Communications (ICC), Sydney, Australia, Jun 2014.

A. Loch, T. Nitsche, A. Kühne, M. Hollick, J. Widmer & A. Klein, „Practical Interference Alignment in the Frequency Domain for OFDM-based Wireless Access Networks,“ in Proc. 15th IEEE International Syposium on a World of Wireless, Mobile and Multimedia Networks, Sydney, Australia, Jun 2014 (Best Paper Award).

A. Loch, M. Hollick, A. Kühne & A. Klein, „Corridor-based Routing: Opening Doors to PHY-Layer Advances for Wireless Multihop Networks,“ in Proc. 15th IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks, Sydney, Australia, Jun 2014 (Best Poster Award).

R. Ganesan, H. Al Shatri, X. Li, T. Weber & A. Klein, „Multi-Group Multi-Way relaying with Reduced Number of Relay Antennas,“ in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Florence, Italy, May 2014.

W. Sarhan, M. Küppers & A. Klein, „Optimization of the per tone noise protection in xdsl Systems employing virtual noise,“ in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Florence, Italy, May 2014.

A. Awada, „Inter-RAT Mobility Robustness Optimization in Self-Organizing Networks,“ Ph.D. Thesis, Technische Universität Darmstadt, Darmstädter Dissertationen D17, Mar 2014.

Z. Chen, A. Kühne & A. Klein, „Improved Bias Cancellation and Header Communication for Random Gossiping-based Static Wireless Sensor Networks,“ in Proc. Workshop on Smart Antennas WSA, Erlangen, Germany, Mar 2014.

bis 2013

2013

W. Sarhan & A. Klein, „Optimization of the Rate Adaptation Procedures in xDSL Systems,“ in Proc. International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), St. Martin, Dec 2013.

H. Degenhardt & A. Klein, „Known-Interference Aware Iterative MMSE Filter Design for Non-Regenerative Multi-Way Relaying,“ in Proc. IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), Saint Martin, Dec 2013.

H. Degenhardt, Y. Rong & A. Klein, „Non-Regenerative Multi-Way Relaying: Combining the Gains of Network Coding and Joint Processing,“ IEEE Transactions on Wireless Communications, vol. 12, no. 11, pp. 5692-5703, November 2013., vol. 12, pp. 5692-5703, Nov 2013.

H. Al-Shatri, X. Li, R. SivaSiva Ganesan, A. Klein & T. Weber, „Multi-Convex Optimization for Sum Rate Maximization in Multiuser Relay Networks,“ in Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communication (PIMRC), London, UK, Sep 2013.

D. Kifle, B. Wegmann, I. Viering & A. Klein, „On The Potential of Traffic Driven Tilt Optimization in LTE-A Networks,“ in Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communication (PIMRC), London, UK, Sep 2013.

S. Alabed, M. Pesavento & A. Klein, „Distributed Differential Space-Time Coding for Two-Way Relay Networks using Analog Network Coding,“ in Proc. European Signal Processing Conference (EUSIPCO), Marrakech, Maroco, Sep 2013.

S. Alabed, M. Pesavento & A. Klein, „Relay Selection based Space-Time Coding for Two-Way Wireless Relay Networks using Digital Network Coding,“ in Proc. IEEE International Symposium on Wireless Communication Systems (ISWCS), Ilmeneau, Germany, Aug 2013.

C. Chen, A. Kühne & A. Klein, „Multi-hop Coordination in Gossiping-based Wireless Sensor Networks,“ in Proc. International Symposium on Wireless Communication Systems ISWCS, Ilmenau, Germany, Aug 2013.

R. Ganesan, H. Al-Shatri, A. Kühne, T. Weber and A. Klein, „Pair-aware Interference Alignment in Multi-user Two-way Relay Networks,“ IEEE Transactions on Wireless Communications, vol. 12, no. 8, pp. 3662-3671, August 2013

X. Li, H. Al-Shatri, R. S. Ganesan, A. Klein & T. Weber, „Interference Alignment Aided by Locally Connected Relays,“ in Proc. IEEE International Symposium on Wireless Communication Systems (ISWCS), Ilmenau, Germany, Aug 2013.

A. Awada, B. Wegmann, I. Viering & A. Klein, „A Location-based Self-Optimizing Algorithm for the Inter-RAT Handover Parameters,“ in Proc. IEEE International Conference on Communications (ICC), Budapest, Hungary, Jun 2013.

A. Awada, B. Wegmann, I. Viering & A. Klein, „A SON-Based Algorithm for the Optimization of Inter-RAT Handover Parameters,“ IEEE Transactions on Vehicular Technology, vol. 62, pp. 1906-1923, Jun 2013.

Z. Chen, A. Kühne & A. Klein, „Reducing Aggregation Bias and Time in Gossiping-based Wireless Sensor Networks,“ in Proc. IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Darmstadt, Germany, Jun 2013.

C. Fritsche, A. Klein & F. Gustafsson, „Bayesian Cramér-Rao Bound for Mobile Terminal Tracking in Mixed LOS/NLOS Environments,“ IEEE Wireless Communications Letters, vol. 2, pp. 335-338, Jun 2013.

R. S. Ganesan, H. Al-Shatri, T. Weber & A. Klein, „Relay-aided interference alignment for bidirectional communications in multi-pair multi-relay networks,“ in Proc. IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Darmstadt, Germany, Jun 2013.

A. Loch, M. Hollick, T. Nitsche, J. Widmer, A. Kuehne & A. Klein, „CSI Feedback in OFDMA Wireless Networks with Multiple Transmitter-Receiver Pairs,“ in Proc. IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC'13), Darmstadt, Germany, Jun 2013.

A. Loch, R. Klose, M. Hollick, A. Kühne & A. Klein, „Practical OFDMA in Wireless Networks with Multiple Transmitter-Receiver Pairs,“ in Proc. IEEE Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM'13), Madrid, Spain, Jun 2013 (Best Demo Award).

H. Al-Shatri, X. Li, R. S. Ganesan, A. Klein & T. Weber, „Closed-Form Solutions for Minimizing Sum MSE in Multiuser Relay Networks,“ in Proc. IEEE Vehicular Technology Conference, Dresden, Germany, Jun 2013.

H. Degenhardt & A. Klein, „A Network Coding Approach to Non-Regenerative Multi-Antenna Multi-Group Multi-Way Relaying,“ in Proc. IEEE Vehicular Technology Conference, Dresden, Germany, Jun 2013.

R. S. Ganesan, H. Al-Shatri, T. Weber & A. Klein, „Iterative MMSE filter design for multi-pair two-way multi-relay networks,“ in Proc. IEEE International Conference on Communications, Budapest, Hungary, Jun 2013.

X. Li, H. Al-Shatri, R. S. Ganesan, A. Klein & T. Weber, „Feasibility Conditions for Relay-Aided Interference Alignment in Partially Connected Networks,“ in Proc. IEEE Vehicular Technology Conference, Dresden, Germany, Jun 2013.

R. S. Ganesan, H. Q. Le, H. Al-Shatri, T. Weber & A. Klein, „Closed form solution and useful signal power maximization for interference alignment in multi-pair two-way relay networks,“ in Proc. IEEE Wireless Communications and Networking Conference, Shanghai, China, Apr 2013.

A. Kuehne, A. Loch, M. Hollick & A. Klein, „Node Selection for Corridor-based Routing in OFDMA Multihop Networks,“ in Proc. IEEE Wireless Communications and Networking Conference, Shanghai, China, Apr 2013.

E. Veshi, A. Kuehne & A. Klein, „Comparison of different multicast strategies in wireless identically distributed channels,“ in Proc. IEEE Wireless Communications and Networking Conference, Shanghai, China, Apr 2013.

H. Degenhardt, F. Hohmann & A. Klein, „A Hybrid Approach Combining Non-Regenerative MIMO Two-Way Relaying and Direct Link Transmission,“ in Proc. ITG Workshop on Smart Antennas, Stuttgart, Germany, Mar 2013.

D. Kifle, B. Wegmann, I. Viering & A. Klein, „Impact of Antenna Tilting on Propagation Shadowing Model,“ in Proc. IEEE International Vehicular Technology Conference, Dresden, Germany, Mar 2013.

A. Kuehne, A. Loch, M. Hollick & A. Klein, „Spatial reuse in OFDMA multi-hop networks applying corridor-based routing,“ in Proc. ITG Workshop on Smart Antennas, Stuttgart, Germany, Mar 2013.

S. Alabed, M. Pesavento & A. Klein, „ Non-coherent distributed space-time coding techniques for two-way wireless relay networks,“ EURASIP Journal on Advances in Signal Processing: Special Issue on Sensor Array Processing, vol. 2013, Jan 2013.

2012

N. Franzen, „Comparison of Coordinated and Uncoordinated PHY/MAC Schemes for Beaconing,“ in Proc. IEEE Digital Avionics Systems Conference DASC, Williamsburg, VA, USA, Oct 2012.

A. Awada, B. Wegmann, I. Viering & A. Klein, „Cell-Pair Specific Optimization of the Inter-RAT Handover Parameters in SON,“ in Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Sydney, Australia, Sep 2012.

H. Degenhardt, F. Hohmann & A. Klein, „Pilot Transmission Scheme and Robust Filter Design for Non-Regenerative Multi-Pair Two-Way Relaying,“ in Proc. IEEE International Symposium on Personal, Indoor and Radio Mobile Communications, Sydney, Australia, Sep 2012.

R. SivaSiva Ganesan, H. Al-Shatri, T. Weber & A. Klein, „Cooperative Zero Forcing in Multi-Pair Multi-Relay Networks,“ in Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Sydney, Australia, Sep 2012.

A. Kühne, A. Klein, A. Loch & M. Hollick, „Corridor-based Routing using Opportunistic Forwarding in OFDMA Multihop Networks,“ in Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Sydney, Australia, Sep 2012.

H. Al-Shatri, R. SivaSiva Ganesan, A. Klein & T. Weber, „Perfect versus Imperfect Interference Alignment using Multiple MIMO Relays,“ in Proc. IEEE International Symposium on Wireless Communication Systems, Paris, France, Aug 2012.

A. Awada, B. Wegmann, I. Viering & A. Klein, „Performance Comparison of Signal Strength and Signal Quality Baser Inter-RAT MRO,“ in Proc. IEEE International Symposium on Wireless Communication Systems, Paris, France, Aug 2012.

Z. Chen, A. Kühne & A. Klein, „Delay Constraints for Multiple Applications in Wireless Sensor Networks,“ in Proc. IEEE International Symposium on Wireless Communication Systems, Paris, France, Aug 2012.

H. Degenhardt & A. Klein, „Hybrid one-/two-way transmission scheme for bidirectional multi-user relaying under asymmetric rate requirements,“ in Proc. International OFDM Workshop (INOWo), Essen, Germany, Aug 2012.

A. Kühne, A. Klein, A. Loch & M. Hollick, „Opportunistic forwarding in multi-hop OFDMA networks with local CSI,“ in Proc. 17th International OFDM Workshop, Essen, Germany, Aug 2012.

D. Würtz, A. Klein & M. Kuipers, „Distributed Margin Optimization Using Spectrum Balancing in Multi-user DSL Systems,“ in Proc. 20th European Signal Processing Conference, Bucharest, Romania, Aug 2012.

T. Kürner, P. Grazioso, A. Eisenblätter, G. de la Roche, F. Velez, A. Hecker, M. Toril, M. Wagrowski, M. Garcia-Lozano & P. Hasselbach, „Deployment, Optimisation and Operation of Next Generation Networks,“ in Pervasive Mobile and Ambient Wireless Communications – Cost Action 2100, R. Verdone and A. Zanella (Eds.), chapter 10, pp. 407-459, Springer Verlag, Cost, Signals and Communication Technology, no. ISBN 978-1-4471-2314-9, 2012.

A. Kühne & A. Klein, „ Hybrid adaptive/non-adaptive multi-user OFDMA systems in the presence of user-specific imperfect channel knowledge,“ EURASIP Journal on Wireless Communications and Networking, vol. 2012:207, Jul 2012.

W. Sarhan, A. Klein & M. Kuipers, „Jointly Optimizing the Virtual Noise Mask and the SNR Margin for improved Service in xDSL Systems,“ in Proc. IEEE International Conference on Communications, Ottawa, Canada, Jun 2012.

H. Al-Shatri, R. SivaSiva Ganesan, A. Klein & T. Weber, „Interference Alignment Using a MIMO Relay and Partially-Adapted Transmit/Receive Filters,“ in Proc. IEEE Wireless Communications and Networking Conference, Paris, France, Apr 2012.

H. Degenhardt & A. Klein, „Self-interference aware MIMO filter design for non-regenerative multi-pair two-way relaying,“ in Proc. IEEE Wireless Communications and Networking Conference, Paris, France, Apr 2012.

P. Hasselbach, „Capacity Optimization for Self-organizing Networks: Analysis and Algorithms,“ Ph.D. Thesis, Technische Universität Darmstadt, Darmstädter Dissertationen D17, Apr 2012.

Z. Chen, A. Kühne A. Klein, Adrian Loch, Matthias Hollick & Joerg Widmer, „Two-Way Relaying for Multiple Applications in Wireless Sensor Networks,“ in Proc. 16th International ITG Workshop on Smart Antennas WSA 2012, Dresden, Germany, Mar 2012.

H. Degenhardt & A. Klein, „Filter design with optimized numbers of data streams for multi-pair two-way relaying under asymmetric rate requirements,“ in Proc. 16th International ITG Workshop on Smart Antennas WSA 2012, Dresden, Germany, Mar 2012.

2011

A. Klein, A. Zoubir, S. Ulbrich, H. Degenhardt, F. Suratman & A. Kühne, „Herausforderungen zukünftiger Mobilkommunikation,“ Forschen, Nr. 2, pp. 64-69, Nov 2011.

T. Maciel, R. dos Santos & A. Klein, „Centralized Scheduling for CoMP,“ in Coordinated Multi-Points in Mobile Communications; from Theory to Practice, P. Marsch and G. Fettweis (Eds.), pp. 243-254, Cambridge University Press, no. ISBN 978-1-107-00411-5, 2011.

A. Sohl & A. Klein, „Semiblind Channel Estimation for IFMDA in Case of Channels with Large Delay Spread,“ EURASIP Journal on Advances in Signal Processing, vol. 2011, 2011.

A. Amah & A. Klein, „Non-Regenerative Multi-Way Relaying: Space-Time Analog Network Coding and Repetition,“ IEEE Communications Letters, vol. 15, pp. 1362-1364, Dec 2011.

A. Awada, B. Wegmann, I. Viering & A. Klein, „Self-Optimization Algorithm for Inter-Rat Configuration Parameters,“ in Proc. IEEE International Symposium on Wireless Communication Systems, Aachen, Germany, Nov 2011.

H. Degenhardt, T. Unger & A. Klein, „Self-interference aware MMSE filter design for a cellular multi-antenna two-way relaying scenario,“ in Proc. Proceedings of the Eighth International Symposium on Wireless Communication Systems ISWCS, Aachen, Germany, Nov 2011.

R. SivaSiva Ganesan & A. Klein, „Projection based Space-Frequency Interference Alignment in a Multi-Carrier Multi-User Two-Way Relay Network,“ in Proc. Proceedings of the Eighth International Symposium on Wireless Communication Systems ISWCS, Aachen, Germany, Nov 2011.

I. Viering, B. Wegmann, A. Lobinger, A. Awada & H. Martikainen, „Mobility Robustness optimization beyond Doppler Effect and WSS Assumption,“ in Proc. IEEE International Symposium on Wireless Communication Systems, Aachen, Germany, Nov 2011.

A. Awada, B. Wegman, I. Viering & A. Klein, „Optimizing Radio Network Parameters of Long Term Evolution System Using Taguchi's Method,“ IEEE Transactions on Vehicular Technology., vol. 60, pp. 3825-3839, Oct 2011.

S. Gligorevic, N. Schneckenburger, N. Franzen & M. Schell, „L-band Compatibility of LDACS1,“ in Proc. CEAS Air and Space Conference, Venezia, Italy, Oct 2011.

N. Schneckenburger, N. Franzen, S. Gligorevic & M. Schell, „L-band Compatibility of LDACS1,“ in Proc. IEEE Digital Avionics Systems Conference, San Francisco, USA, Oct 2011.

A. Amah & A. Klein, „Regenerative Multi-Group Multi-Way Relaying,“ IEEE Transactions on Vehicular Technology, vol. 60, pp. 3017-3029, Sep 2011.

A. Kühne & A. Klein, „Consideration of inaccurate outdating parameters in adaptive OFDMA,“ in Proc. 16th International OFDM-Workshop InOWo'11, Hamburg, Germany, Sep 2011.

D. Würtz, A. Klein & M. Kuipers, „Hybrid Rate and Power Adaptive Distributed Spectrum Optimization for DSL Systems“ in Proc. 16th International OFDM-Workshop InOWo'11, Hamburg, Germany, Sep 2011.

O. Bulakei, A. Awada, A. Bou Saleh, S. Redana, J Hamalainen, B. Wegman & B. Raaf, „Joint Optimization of Uplink Power Control Parameters in LTE-Advanced Relay Networks,“ in Proc. IEEE International Wireless Communications and Mobile Computing Conference, Istanbul, Turkey, Jul 2011.

A. Amah & A. Klein, „Non-Regenerative Multi-Antenna Multi-Group Multi-Way Relaying,“ Eurasip Journal on Wireless Communications and Networking, vol. 2011, Jul 2011.

A. Awada, B. Wegman, D. Rose, I. Viering & A. Klein, „Towards Self-Organizing Mobility Robustness Optimzation in Inter-RAT Scenario,“ in Proc. IEEE Vehicular Technology Conference, Budapest, Hungary, May 2011.

A. Awada, B. Wegman, I. Viering & A. Klein, „A Joint Optimization of Antenna Parameters in a Cellular Network Using Taguchi's Method,“ in Proc. IEEE Vehicular Technology Conference, Budapest, Hungary, May 2011.

A. Awada, B. Wegmann, I. Viering & A. Klein, „A Mathematical Model for User Traffic in Coverage and Capacity Optimization of a Cellular Network,“ in Proc. IEEE Vehicular Technology Conference, Taipeh, Taiwan, May 2011.

N. Franzen, „Advanced Aloha with SIC for Beaconing in a MANET,“ in Proc. IEEE Vehicular Technology Conference, Budapest, Hungary, May 2011.

R. SivaSiva Ganesan, T. Weber & A. Klein, „Interference Alignment in Multi-User Two-Way Relay Networks“ in Proc. IEEE Vehicular Technology Conference, Budapest, Hungary, May 2011.

A. Kühne & A. Klein, „Combination of Adaptive and Non-Adaptive Multi-User OFDMA Schemes in the Presence of User-Dependent Imperfect CSI,“ in OFDM – Concepts for Future Communications Systems, H. Rohling (Eds.), pp. 142-145, Springer Verlag, no. ISBN: 978-3-642-17495-7, 2011.

H. Degenhardt & A. Klein, „Non-regenerative multi-antenna two-hop relaying under an asymmetric rate constraint,“ in Proc. IEEE Wireless Communications and Networking Conference (WCNC 2011), Cancun, Mexico, Mar 2011.

C. Fritsche, „Statistical Data Fusion for Hybrid Localization of Mobile Terminals,“ Mar 2011 (Darmstädter Dissertationen D17).

A. Kühne, „Analysis of hybrid adaptive/non-adaptive multi-user OFDMA systems with imperfect channel knowledge,“ Mar 2011 (Darmstädter Dissertationen D17).

A. Amah, „Multi-Antenna Multi-Group Multi-Way Relaying,“ Feb 2011 (Darmstädter Dissertationen D17) (GSC Award 2013).

A. Sohl, „Pilot Assisted and Semiblind Channel Estimation for Interleaved Frequency Division Multiple Access and the Generalization for Block Interleaved Frequency Division Multiple Access,“ January 2011 (Darmstädter Dissertationen D17).

2010

K. Schmitz, P. P. Hasselbach, B. Ebisch, M. Nakano Daniel, G. Pipa, A. Klein & R. A. W. Galuske, „Application of parallel factor analysis to electrophysiological data,“ Neuroscience Meeting Planner, San Diego, CA, 2010.

M. Schnell, N. Franzen & S. Gligorevic, „L-DACS1 Laboratory Demonstrator Development and Compatibility Measurement Set-up,“ in Proc. IEEE Digital Avionics Systems Conference, Salt Lake City, USA, Oct 2010.

M. Walter, N. Franzen & M. Schnell, „New Concepts for a Decentralized, Self-Organizing Air-to-Air Radio Link,“ in Proc. IEEE Digital Avionics System Conference, Salt Lake City, USA, Oct 2010.

A. Awada, B. Wegmann, I. Viering & A. Klein, „A Game-Theoretic Approach to Load Balancing in Cellular Radio Networks,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Instanbul, Turkey, Sep 2010.

A. Awada, I. Viering, B. Wegman & A. Klein, „Application of Game-Theory for Load Balancing in Long Term Evolution Networks,“ Frequenz Journal of RF-Engineering and Telecommunications, vol. 64, pp. 180-184, Sep/Oct 2010.

P. P. Hasselbach, A. Klein, I. Gaspard, D. von Hugo & E. Bogenfeld, „Performance Evaluation of Self-optimising Mobile Radio Networks in Realistic Scenarios,“ Frequenz Journal of RF-Engineering and Telecommunications, vol. 64, pp. 164-168, Sep/Oct 2010.

D. Würtz, A. Klein & M. Kuipers, „Crosstalk channel estimation in xDSL systems based on SINR variations,“ in Proc. 15th International OFDM-Workshop (InOwo), Hamburg, Germany, Sep 2010.

D. Würtz, A. Klein & M. Kuipers, „Seamless Transition of Power Allocation in Multi-User xDSL Systems,“ in Proc. 18th European Signal Processing Conference (EUSIPCO), Aalborg, Denmark, Sep 2010.

A. Fernekess, „Low-Complexity Performance Evaluation Methodologies for OFDMA-based Packet-Switched Wireless Networks,“ August 2010 (Darmstädter Dissertationen D17).

A. Amah & A. Klein, „Beamforming-based Physical Layer Network Coding for Non-Regenerative Multi-Way Relaying,“ EURASIP Journal on Wireless Communications and Networking (special issue: Physical Layer Network Coding for Wireless Cooperative Networks), vol. 2010, Jul 2010.

C. Fritsche & A. Klein, „Nonlinear Filtering for Hybrid GPS/GSM Mobile Terminal Tracking,“ International Journal of Navigation and Observation, vol. 2010, Jun 2010.

A. Awada, I. Viering & A. Klein, „A Mathematical Model for User Traffic in Coverage and Capacity Optimization of a Cellular Network,“ in Proc. IEEE Vehicular Technology Conference, Taipeh, Taiwan, May 2010.

N. Franzen, A. Arkhipov & M. Schell, „L-DACS1 Physical Layer Laboratory Demonstrator,“ in Proc. IEEE Integrated Communications Navigation and Surveillance Conference, Washington DC, USA, May 2010.

T. Frank, „Block-Interleaved Frequency Division Multiple Access and its Application in the Uplink of Future Mobile Radio Systems,“ May 2010 (Darmstädter Dissertationen D17).

A. Sohl & A. Klein, „Comparison of different channel estimation approaches for Block-IFDMA,“ European Transactions on Telecommunications Special Issue on MC CDMA, vol. 21, 2010.

A. Amah & A. Klein, „Multi-Group Multi-Way Relaying: When Analog Network Coding Finds Its Transceive Beamforming,“ in Proc. Wireless Communications and Networking Conference, Sydney, Australia, Apr 2010.

A. Amah & A. Klein, „Pair-Aware Transceive Beamforming for Non-Regenerative Multi-User Two-Way Relaying,“ in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing, Dallas, U.S.A., Mar 2010.

A. Amah, T. Frank & A. Klein, „On Combining SDMA and B-IFDMA: Multi-User Detection and Channel Estimation,“ in Proc. International ITG Workshop on Smart Antennas, Bremen, Germany, Feb 2010.

A. Awada, B. Wegmann, I. Viering & A. Klein, „ A Game Theoretic Analysis of Load Balancing,“ ITG-Fachgruppe Mobilität in IP-basierten Netzen, Darmstadt, Germany, Feb 2010.

H. Degenhardt, D. Czepluch, F. Demmel & A. Klein, „Consideration of Sectors for Direction of Arrival Estimation with Circular Arrays,“ in Proc. International ITG Workshop on Smart Antennas, Bremen, Germany, Feb 2010.

P. Hasselbach, A. Klein, D. von Hugo & E. Bogenfeld, „Interference in Radio Resource Management: A Comparison of Coordinated and Uncoordinated Approaches,“ ITG Fachgruppe Mobilität in IP-basierten Netzen, Darmstadt, Germany, Feb 2010.

A. Kuehne & A. Klein, „Transmit Antenna Selection and OSTBC in adaptive multiuser OFDMA systems with different user priorities and imperfect CQI,“ in Proc. International ITG Workshop on Smart Antennas, Bremen, Germany, Feb 2010.

C. Müller, „Distributed Resource Allocation in OFDMA-Based Relay Networks,“ Feb 2010 (Darmstädter Dissertationen D17).

Y. Zhang, „Downlink Adaptive Resource Allocation for a Multi-user MIMO OFDM System with and without Fixed Relays,“ Feb 2010 (Darmstädter Dissertationen D17).

T. Maciel & A. Klein, „On the Performance, Complexity and Fairness of Suboptimal Resource Allocation for Multi-User MIMO-OFDMA Systems,“ IEEE Transactions on Vehicular Technology, vol. 59, pp. 406-419, Jan 2010.

2009

A. Amah & A. Klein, „A Transceive Strategy for Regenerative Multi-Antenna Multi-Way Relaying,“ in Proc. IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), Aruba, Dutch Antilles, Dec 2009.

C. Fritsche, T. B. Schön & A. Klein, „The Marginalized Auxiliary Particle Filter,“ in Proc. 3rd IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, Aruba, Dutch Antilles, Dec 2009.

Y. Silva & A. Klein, „Linear Transmit Beamforming Techniques for the multi-group multicast Scenario,“ IEEE Transactions on Vehicular Technology, vol. 58, pp. 4353-4367, Oct 2009.

A. Amah & A. Klein, „Non-Regenerative Multi-Way Relaying with Linear Beamforming,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Tokyo, Japan, Sep 2009.

A. Fernekeß, A. Klein, B. Wegmann & K. Dietrich, „Analysis of Cellular Mobile Networks using Fair Throughput Scheduling,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Tokyo, Japan, Sep 2009.

P. Hasselbach, A. Klein, I. Gaspard, D. von Hugo & E. Bogenfeld „Performance Analysis of Dynamic Radio Resource Allocation for Self-organising Cellular Mobile Radio Networks,“ COST 2100 TD(09)937, Vienna, Austria, Sep 2009.

P. Hasselbach, A. Klein & I. Gaspard, „Transmit Power Allocation for Self-organising Future Cellular Mobile Radio Networks,“ in Proc. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), Tokyo, Japan, Sep 2009.

A. Kühne, A. Klein, X. Wei & T. Weber, „Consideration of signaling overhead in adaptive Multi-user OFDMA/TDD Systems,“ in Proc. 14th International OFDM-Workshop (InOWo), Hamburg, Germany, Sep 2009.

A. Sohl & A. Klein, „Channel Estimation for IFDMA -- Comparison of Semiblind Channel Estimation Approaches and Estimation with Interpolation Filtering,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Tokyo, Japan, Sep 2009.

D. Würtz, A. Klein, M. Kuipers & W. Kozek, „Crosstalk cancellation for xDSL with restricted access to lines,“ in Proc. 14th International OFDM-Workshop (InOWo), Hamburg, Germany, Sep 2009.

C. Fritsche & A. Klein, „On the Performance of Mobile Terminal Tracking in Urban GSM Networks using Particle Filters,“ in Proc. European Signal Processing Conference (EUSIPCO), Glasgow, Scottland, Aug 2009.

T. Svensson, T. Frank, T. Eriksson, M. Sternad & A. Klein, „Block Interleaved Frequency Division Multiple Access for Power Efficiency, Robustness, Flexibility and Scalability,“ EURASIP Journal on Wireless Communications and Networking, (special issue: „3GPP LTE and LTE Advanced“), vol. 2009, pp. 18, Aug 2009 (EURASIP JWCN/720973).

S. Berger, T. Unger, M. Kuhn, A. Klein & A. Wittneben, „Recent Advances in Amplify-and-Forward Two-Hop Relaying,“ IEEE Communications Magazine, vol. 47, pp. 50-56, Jul 2009.

A. Fernekeß, A. Klein, B. Wegmann & K. Dietrich, „Estimating Cell Throughput of OFDMA Systems with Scheduling,“ in Proc. International Wireless Communications and Mobile Computing Conference, Leipzig, Germany, Jun 2009.

C. Fritsche & A. Klein, „On the Performance of Hybrid GPS/GSM Mobile Terminal Tracking,“ in Proc. International Workshop on Synergies in Communications and Localization (ICC), Dresden, Germany, Jun 2009.

P. Hasselbach, A. Klein & I. Gaspard, „Self-organising Radio Resource Management for Cellular Mobile Radio Networks using Power-Bandwidth Characteristics,“ in Proc. ICT-MobileSummit, Santander, Spain, Jun 2009.

P. Hasselbach, A. Klein & I. Gaspard, „Radio Resource Allocation based on Power-Bandwidth Characteristics for Self-optimising Cellular Mobile Radio Networks,“ ITG-Fachgruppe Mobilität in IP-basierten Netzen, Klagenfurt, Austria, Jun 2009.

T. Unger, „Multiple-Antenna Two-Hop Relaying for bi-directional Transmission in Wireless Communication Systems,“ Jun 2009 (Darmstädter Dissertationen D17).

A. Fernekeß, A. Klein, B. Wegmann & K. Dietrich, „Semi-analytical Cell Throughput Estimation of OFDMA Systems with Scheduling based on SINR distributions,“ COST2100 TD(09)806, Valencia, Spain, May 2009.

A. Kühne & A. Klein, „Adaptive multiuser OFDMA Systems with high Priority Users in the Presence of Imperfect CQI,“ in Proc. 7th International Workshop on Multi-Carrier Systems & Solutions (MC-SS), Herrsching, Germany, May 2009.

A. Sohl & A. Klein, „Iterative Channel Estimation versus Estimation with Interpolation Filters,“ in Proc. International Workshop on Multi-carrier Systems & Solutions, Herrsching, Germany, May 2009.

C. Fritsche, U. Hammes, A. Klein & A. Zoubir, „Robust Mobile Terminal Tracking in NLOS Environments using Interacting Multiple Model Algorithm,“ in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Taipei, Taiwan, Apr 2009.

X. Wei, T. Weber, A. Kühne & A. Klein, „Joint Transmission with imperfect partial channel state information,“ in Proc. IEEE Vehicular Technology Conference (VTC), Barcelona, Spain, Apr 2009.

A. Fernekeß, A. Klein, B. Wegmann & K. Dietrich, „Modular System Level Simulator Concept for OFDMA Systems,“ Communications Magazine, vol. 47, pp. 150-156, Mar 2009.

C. Fritsche, A. Klein & D. Würtz, „Hybrid GPS/GSM Localization of Mobile Terminals using the Extended Kalman Filter,“ in Proc. 6th Workshop on Positioning, Navigation and Communication, Hannover, Germany, Mar 2009.

A. Klein, A. Sohl & T. Frank, „ Block-IFDMA: A Generalization of IFDMA-Properties and Channel Estimation,“ Single Carrier FDMA Workshop, New York. U.S.A., Mar 2009 (Invited).

A. Sohl, „Channel Estimation for B-IFDMA-Interpolation Filters versus Decision Directed Estimation,“ Single Carrier FDMA Workshop, New York, U.S.A., Mar 2009 (Invited).

A. Amah, A. Klein, Y. Silva & A. Fernekess, „Multi-Group Multicast Beamforming for Multi-User Two-Way Relaying,“ in Proc. International ITG Workshop on Smart Antennas, Berlin, Germany, Feb 2009.

A. Kuehne, „Kombination adaptiver und nicht-adaptiver OFDMA-Übertragungsverfahren bei nicht perfekter Kanalkenntnis,“ DFG Kolloquium, Erlangen, Germany, Feb 2009.

B. Song, M. Haardt, T. Maciel & A. Klein, „Multi-User MIMO Downlink Precoding for Time Variant Correlated Channels,“ in Proc. International ITG Workshop on Smart Antennas, Berlin, Germany, Feb 2009.

2008

T. Maciel & A. Klein, „Resource Allocation Strategies for SDMA/OFDMA Systems,“ in Advances in Mobile and Wireless Communications, István Frigyes and János Bitó and Péter Bakki (Eds.), chapter 6, pp. 115-121. Budapest, Hungary: Springer Verlag, Lecture Notes in Electrical Engineering, no. ISBN 978-3-540-79040-2, 2008.

P. Hasselbach, A. Klein & I. Gaspard, „Measurement Based Cell Bandwidth Allocation in Cellular Mobile Radio Networks using Power-Bandwidth Characteristics,“ COST 2100 TD(08)609, Lille, France, Okt 2008.

A. Kuehne & A. Klein, „Throughput Analysis of Multi-user OFDMA-Systems using imperfect CQI feedback and diversity Techniques,“ IEEE Journal on Selected Areas in Communications, vol. 26, pp. 1440-1451, Oct 2008.

C. Müller, „Inter-Cell Interference Mitigation in Cellular Networks Applying Grids of Beams,“ ITG-Fachgruppe Angewandte Informationstheorie, Berlin, Germany, Oct 2008.

P. Hasselbach, A.Klein & M. Siebert, „Interdependence of Transmit Power and Cell Bandwidth in Cellular Mobile Radio Networks,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Cannes, France, Sep 2008

T. Maciel, „Suboptimal Resource Allocation for Multi-User Mimo-OFDMA Systems,“ Sep 2008 (Darmstädter Dissertationen D17).

A. Sohl & A. Klein, „Blind Channel Estimation based on Second Order Statistics for IFDMA,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Cannes, France, Sep 2008.

T. Unger & A. Klein, „Maximum Sum Rate for Non-regenerative Two-way Relaying in Systems of Different Complexities,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Cannes, France, Sep 2008 (invited).

C. Müller, A. Klein & B. Raaf, „A Coordinated Resource Allocation Algorithm for Infrastructure-Based Relay Networks,“ EURASIP Journal on Advances in Signal Processing, (special issue: „Cross-Layer Design for the Physical, MAC, and Link Layer in Wireless Systems“), vol. 2009, pp. 17, Aug 2008 (Article ID 630964).

A. Kühne, A. Klein, X. Wei & T. Weber, „Transmit Antenna Selection with imperfect CQI feedback in OFDMA systems,“ in Proc. 13th International OFDM-Workshop, Hamburg, Germany, Aug 2008.

X. Wei, T. Weber, A. Kühne & A. Klein, „Optimum MMSE Detection with Correlated Random Noise Variance in OFDM Systems,“ in Proc. 13th International OFDM-Workshop, Hamburg, Germany, Aug 2008.

P. Hasselbach, A. Klein & M. Siebert, „Evaluation of Self-x Approaches for Mobile Radio Networks using Cell Level Simulations,“ ITG-Fachgruppe Mobilität in IP-basierten Netzen, Stuttgart, Germany, Jun 2008.

A. Fernekeß, A. Klein, B. Wegmann, K. Dietrich & M. Litzka, „Load Dependent Interference Margin for Link Budget Calculations of OFDMA Networks,“ IEEE Communications Letters, vol. 12, pp. 398-400, May 2008.

T. Frank, A. Klein & T. Haustein, „A Survey on the Envelope Fluctuations of DFT Precoded OFDMA Signals,“ in Proc. International Conference on Communications (ICC), Beijing, China, May 2008.

P. Hasselbach, A. Klein & I. Gaspard, „Dynamic Resource Assignment (DRA) with Minimum Outage in Cellular Mobile Radio Networks,“ in Proc. Vehicular Technology Conference, Singapore, May 2008.

P. Hasselbach & A. Klein, „An Analytical Model for Outage Probability and Bandwidth Demand of the Downlink in Packet Switched Cellular Mobile Radio Networks,“ in Proc. International Conference on Communications, Beijing, China, May 2008.

T. Unger & A. Klein, „Duplex schemes in multiple-antenna two-hop relaying,“ EURASIP Journal on Advances in Signal Processing,(special issue: „Multihop-Based Cellular Networks“), vol. 2008, pp. 14, May 2008 (Article ID 128592).

C. Fritsche & A. Klein, „Cramer-Rao Lower Bounds for Hybrid Localization of Mobile Terminals,“ in Proc. Workshop on Positioning, Navigation and Communication, Hannover, Germany, Mar 2008.

P. Hasselbach, A. Klein & I. Gaspard, „Dynamic Resource Assignment (DRA) with Minimum Outage in Cellular Mobile Radio Networks,“ COST 2100 TD(08)429, Wroclaw, Poland, Feb 2008.

A. Kühne & A. Klein, „Adaptive MIMO-OFDM using OSTBC with imperfect CQI feedback,“ in Proc. International ITG Workshop on Smart Antennas, Darmstadt, Germany, Feb 2008.

T. Maciel & A. Klein, „A Perfomance Complexity Analysis of four Suboptimal SDMA Algorithms,“ in Proc. International ITG Workshop on Smart Antennas, Darmstadt, Germany, Feb 2008.

Y. Silva, „Adaptive beamforming and power allocation in multi-carrier multicast wireless networks,“ Mar 2008 (Darmstädter Dissertationen D17).

2007

A. Klein, A. Gershman, R. Jakoby, P. Meissner, R. Steinmetz, A. Zoubir, L. Cirillo, K. Kastell & T. Unger, „Kommunikationstechnik – Wachstumsmotor der Zukunft,“ Thema Forschung, pp. 32-37, 2007.

R. Steinmetz, A. Gershman, M. Hollick, W. Johannsen & A. Klein, „Ubiquitär verfügbare Kommunkationsdienste,“ Thema Forschung, pp. 28-32, 2007.

C. Fritsche, A. Klein, H. Schmitz & M. Pakulski, „A hybrid localization method for mobile station location estimation,“ in Proc. ITG Fachgruppe für angewandte Informationstheorie, Munich, Germany, Oct 2007.

A. Fernekeß, A. Klein, B. Wegmann, K. Dietrich & E. Hamburg, „Performance of IEEE 802.16.e OFDMA in tight reuse scenarios,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Athens, Greece, Sep 2007.

T. Frank, A. Klein & E. Costa, „An efficient implementation for block IFDMA,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Athens, Greece, Sep 2007.

A. Kühne & A. Klein, „Adaptive subcarrier allocation with imperfect channel knowledge versus diversity techniques in a multi-user OFDM-system,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Athens, Greece, Sep 2007.

Y. Silva & A. Klein, „Analysis of linear and non-linear precoding techniques for the spatial separation of unicast and multicast users,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Athens, Greece, Sep 2007.

A. Sohl & A. Klein, „Comparison of localized, interleaved and block-interleaved FDMA in terms of pilot multiplexing and channel estimation,“ in Proc. 15th European Signal Processing Conference, Pozan, Poland, Sep 2007 (Invited).

T. Unger & A. Klein, „Applying Relay Stations with Multiple Antennas in the One- and Two-Way Relay Channel,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Athens, Greece, Sep 2007 (invited).

A. Kühne & A. Klein, „An analytical consideration of quantised CSI feedback on the performance of a multi-user OFDM-system,“ in Proc. 12th International OFDM-Workshop (InOWo), Hamburg, Germany, Aug 2007.

C. Müller, A. Klein, F. Wegner & M. Kuipers, „Dynamic subcarrier, bit an power allocation in OFDMA-based relay networks,“ in Proc. International OFDM-Workshop, Hamburg, Germany, Aug 2007.

T. Maciel & A. Klein, „A resource allocation strategy for SDMA/OFDMA systems,“ in Proc. IST Mobile and Wireless Communications Summit, Budapest, Hungary, Jul 2007.

Y. Silva & A. Klein, „Downling beamforming and SINR balancing for the simultaneous provision of unicast/multicast services,“ in Proc. IST Mobile and Wireless Communications Summit, Budapest, Hungary, Jul 2007.

T. Svensson, T. Frank, D. Falconer, M. Sternad, E. Costa & A. Klein, „B-IFDMA – A power efficient multiple access scheme for non-frequency-adaptive transmission,“ in Proc. IST Mobile and Wireless Communications Summit, Budapest, Hungary, Jul 2007.

T. Unger & A. Klein, „Linear transceive filters for relay stations with multiple antennas in the two-way relay channel,“ in Proc. IST Mobile and Wireless Communications Summit, Budapest, Hungary, Jul 2007.

T. Unger & A. Klein, „On the performance of two-way relaying with multiple-antenna relay stations,“ in Proc. IST Mobile and Wireless Communications Summit, Budapest, Hungary, Jul 2007.

T. Frank, A. Klein & E. Costa, „IFDMA – a scheme combining the advantages of OFDMA and CDMA,“ IEEE Wireless Communications Magazine,(special issue „Next Generation CDMA vs. OFDMA for 4G Wireless Applications“), Jun 2007.

T. Maciel & A. Klein, „A convex quadratic SDMA grouping algorithm based on spatial correlation,“ in Proc. International Conference on Communications, Glasgow, Scotland, Jun 2007.

Y. Silva & A. Klein, „Power allocation in multi-carrier networks with unicast and multicast services,“ in Proc. International Conference on Communications, Glasgow, Scotland, Jun 2007.

A. Sohl, T. Frank & A. Klein, „Channel estimation for block-IFDMA,“ in Proc. International Workshop on Multi-carrier Spread Spectrum, Herrsching, Germany, May 2007.

T. Unger & A. Klein, „On the performance of distributed space-time block codes,“ IEEE Communications Letters, vol. 11, No. 5, pp. 411-413, May 2007.

T. Maciel & A. Klein, „Resource Allocation in SDMA/OFDMA Systems,“ ITG-Fachgruppe Angewandte Informationstheorie, Berlin, Germany, Apr 2007.

C. Müller, A. Klein, F. Wegner & M. Kuipers, „Costs and performance of non-cooperative relay networks,“ in Proc. European Wireless Conference, Paris, France, Apr 2007.

T. Unger & A. Klein, „Two-way relaying with multiple-antenna relay station,“ ITG-Fachgruppe Angewandte Informationstheorie, Berlin, Germany, Apr 2007.

A. Fernekeß, A. Klein, B. Wegmann & K. Dietrich, „Influence of high priority users on the system capacity of mobile networks,“ in Proc. Wireless Communications and Networking Conference, Hong Kong, Mar 2007.

G. Kang, P. Hasselbach, Y. Yang, P. Zhang & A. Klein, „Pilot design for inter-cell interference mitigation in MIMO OFDM systems,“ IEEE Communication Letters, vol. 11, pp. 237-239, Mar 2007.

T. Maciel & A. Klein, „On the performance of SDMA with soft dropping and SINR balancing power control in the downlink of multi-user MIMO systems,“ in Proc. International ITG/IEEE Workshop on Smart Antennas, Vienna, Austria, Feb 2007.

T. Unger & A. Klein, „On the performance of relay stations with multiple antennas in the two-way relay channel,“ COST2100 TD (07) 006, Lisbon, Portugal, Feb 2007.

C. Müller, A. Klein & F. Wegner, „Coverage extension of WiMax using multihop in a low user density environment,“ Frequenz, vol. 61, pp. 3-6, Jan/Feb 2007.

2006

C. Fritsche, A. Klein & H. Schmitz, „Mobile station localization by combining measurements from different sources including reliability information,“ in Proc. ITG Mobility, Aachen, Germany, Oct 2006.

T. Maciel & A. Klein, „A low-complexity SDMA grouping strategy for the downlink of multi-user MIMO systems,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Helsinki, Finland, Sep 2006.

Y. Silva & A. Klein, „Adaptive antenna techniques applied to multicast services in wireless networks,“ Frequenz, vol. 60, pp. 199-202, Sep/Oct 2006.

Y. Silva & A. Klein, „Adaptive beamforming and spatial multiplexing of unicast and multicast services,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Helsinki, Finland, Sep 2006.

T. Unger & A. Klein, „Cooperative MIMO relaying with distributed space-time block codes,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Helsinki, Finland, Sep 2006.

C. Müller, A. Klein & F. Wegner, „Coverage extention of WiMax using multihop in a low user density environment,“ in Proc. International OFDM-Workshop, Hamburg, Germany, Aug 2006.

A. Sohl, T. Frank & A. Klein, „Channel estimation for DFT precoded OFDMA with blockwise and interleaved subcarrier allocation,“ in Proc. 11th International OFDM-Workshop, Hamburg, Germany, Aug 2006.

T. Unger, C. Müller & A. Klein, „Resource allocation schemes for infrastructure based relay,“ in Proc. International OFDM-Workshop, Hamburg, Germany, Aug 2006.

A. Fernekeß, A. Klein, B. Wegman & K. Dietrich, „Influence of traffic models and scheduling on the system capacity of packet-switched mobile radio networks,“ in Proc. IST Mobile & Wireless Communications Summit, Mykonos, Greece, Jun 2006.

M. Herdin & T. Unger, „Performance of infrastructure SISO and MIMO amplify and forward relays in a Manhattan street grid scenario,“ in Proc. IST Mobile & Wireless Communications Summit, Mykonos, Greece, Jun 2006.

T. Frank, A. Klein, E. Costa & A. Kühne, „Low complexity and power efficient space-time-frequency coding for OFDMA,“ in Proc. IST Mobile & Wireless Communications Summit, Mykonos, Greece, Jun 2006.

M. Meurer, T. Weber & A. Klein, „Hybrid localization with temporal post-processing,“ Frequenz, vol. 60, pp. 99-102, May/Jun 2006.

T. Unger & A. Klein, „Radio resource assignment in infrastructure relay networks,“ ITG-Fachgruppe Angewandte Informationstheorie, Munich, Germany, May 2006.

T. Frank, A. Klein & E. Costa, „Low complexity multi carrier multiple access with cyclic delay diversity,“ in Proc. International ITG/IEEE Workshop on Smart Antennas, Ulm, Germany, Mar 2006.

Y. Silva & A. Klein, „Multicast transmission performance improvement through adaptive antenna arrays,“ in Proc. Karlsruhe Workshop on Software Radios, pp. 177-182, Karlsruhe, Germany, Mar 2006.

2005

C. F. Ball, F. Treml, X. Gaube & A. Klein, „Performance analysis of temporary removal scheduling applied to mobile WiMax scenarios in tight frequency reuse,“ in Proc. International Symposium on Personal Indoor and Mobile Radio Communications, vol. 2, pp. 888-894, Berlin, Germany, Sep 2005.

T. Frank, A. Klein, E. Costa & E. Schulz, „Low complexity equalization with and without decision feedback and its application to IFDMA,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, vol. 2, pp. 1219-1223, Berlin, Germany, Sep 2005.

T. Frank, A. Klein, E. Costa & E. Schulz, „IFDMA – a promising multiple access scheme for future mobile radio systems,“ in Proc. International Symposium on Personal Indoor and Mobile Radio Communications, vol. 2, pp. 1214-1218, Berlin, Germany, Sep 2005.

R. Elliott, A. Arkhipov, R. Raulefs & W.A. Krzymien, „Effective SINR mapping for an MC-CDMA system,“ in Proc. International Workshop on Multi-Carrier Spread Spectrum, pp. 361-370, Oberpfaffenhofen, Germany, Sep 2005.

T. Frank, A. Klein, E. Costa & E. Schulz, „Interleaved orthogonal frequency division multiple access with variable data rates,“ in Proc. International OFDM-Workshop, pp. 179-183, Hamburg, Germany, Aug/Sep 2005.

2004

T. Detert & A. Fernekeß, „Joint MSE channel estimation within the current GSM/EDGE standard,“ in Proc. Vehicular Technology Conference, vol. 5, pp. 3822-3827, Los Angeles, USA, Sep 2004.

T. Frank, A. Klein, E. Costa & E. Schulz, „Robustness of IFDMA as air interface candidate for future high rate mobile radio systems,“ in Proc. Kleinheubacher Tagung, pp. 265-207, Miltenberg, Germany, Sep/Oct 2004.

J. Freese, C. Müller, M. Schüßler & R. Jakoby, „Semi-circular array antennas for DOA-estimation and beamforming,“ in Proc. IEEE APS/URSI Symposium on Antennas and Propagation, vol. 1, pp. 415-418, Monterey, USA, Jun 2004.

I. Cosovic, A. Arkhipov & M. Schnell, „Pre-equalization in combination with transmit diversity for OFDMA code-division multiplexing systems in fading channels,“ in Proc. Vehicular Technology Conference, vol. 4, pp. 1854-1858, Milan, Italy, May 2004.

2003

A. Klein, „Trends in der Mobilkommunikation,“ VDE-Vorträge, Bezirk Kurpfalz, Landesmuseum für Technik und Arbeit, Mannheim, Jun 2003.

2002

A. Klein, „UMTS – Mobilkommunikation der 3. Generation,“ VDE-Seminar University of Kaiserslautern, Kaiserslautern, Jul 2002.

2001

M. Purat, A. Klein, R. Köhn, V. Sommer, T. Ulrich, M. Haardt & S. Oestreich, „Die UTRA-TDD-Funkschnittstelle, Teil 2: Die physikalische Übertragungsschicht und deren Systemparameter,“telekom praxis, vol. 78, pp. 21-26, Jun 2001.

M. Purat, A. Klein, R. Köhn, V. Sommer, T. Ulrich, M. Haardt & S. Oestreich, „Die UTRA-TDD-Funkschnittstelle, Teil 1: Grundlegendes zu Systemarchitektur und Funktion,“telekom praxis, vol. 78, pp. 25-31, May 2001.

2000

P. W. Baier, T. Bing & A. Klein, TD-CDMA,„ in Third generation mobile communication systems, R. Prasad and W. Mohr and W. Konhäuser (Eds.), chapter 2, pp. 25-72. Boston, London: Artech House, 2000.

M. Haardt, A. Klein, R. Köhn, S. Oestreich, M. Purat, V. Sommer & T. Ulrich, “The TD-CDMA based UTRA TDD mode,„IEEE Journal on Selected Areas in Communications, vol. 18, pp. 1375-1385, Aug 2000.

1999

M. Haardt, A. Klein, W. Mohr & J. Schindler, “Overview of the UTRA TDD physical layer description,„ in Proc. FRAMES Workshop, Delft, 1999.

P. W. Baier & A. Klein, CDMA with multi-user detection,“ in COST Action 231: Digital mobile radio towards future generation systems – final report, E. Damosso and L. M. Correia (Eds.), chapter 6.5, pp. 331-334. Luxembourg: Office for Official Publications of the European Communities, 1999.

P. W. Baier, J. J. Blanz, P. Jung, A. Klein, M. M. Naßhan, A. Steil & B. Steiner, Joint detection CDMA,„ in COST Action 231: Digital mobile radio towards future generation systems – final report, E. Damosso and L. M. Correia (Eds.), chapter 7.4, pp. 400-409. Luxembourg: Office for Official Publications of the European Communities, 1999.

M. Haardt, A. Klein, W. Mohr & J. Schindler, “The physical layer of the TD-CDMA based UTRA TDD mode,„ in Proc. ACTS Mobile Communications Summit, Sorrento, Jun 1999.

1998

J. Schindler, G. Herbster, A. Klein & M. Haardt, “TDD performance evaluation,„ in Proc. International Symposium on Wireless Personal Multimedia Communications, Yokosuka, Nov 1998.

A. Klein, T. Kreul, J. Schindler, P. Slanina & J. Castro, “Performance of FRAMES multiple access mode 1 with spreading – TD/CDMA,„ in Proc. ACTS Mobile Communications Summit, pp. 333-338, Rhodes, Jun 1998.

A. Klein, T. Kreul & P. Slanina, “FRAMES multiple access mode 1 with spreading – TD/CDMA,„ in Proc. International Symposium on Wireless Communications, Montreal, May 1998.

E. Nikula, A.Toskala, E. Dahlman, L. Girard & A. Klein, “FRAMES multiple access for UMTS and IMT-2000,„IEEE Personal Communications, pp. 16-24, Apr 1998.

1997

A. Klein, R. Pirhonen, J. Sköld & R. Suoranta, “FRAMES multiple access Mode 1 – wideband TDMA with and without spreading,„ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Helsinki, Sep 1997.

F. Ovesjö, E. Dahlman, T. Ojanperä, A. Toskala & A. Klein, “FRAMES multiple access Mode 2 – wideband CDMA,„ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, Helsinki, Sep 1997.

A. Klein, “Data detection algorithms specially designed for the downlink of CDMA mobile radio systems,„ in Proc. Vehicular Technology Conference, Phoenix, May 1997.

T. Ojanperä, A. Klein & P.-O. Anderson, “FRAMES multiple access for UMTS,„ in Proc. IEE Electronics and Communications Division Professional Group E8 (Radiocommunication Systems) Colloquium on “CDMA Techniques and Applications for Third Generation Mobile Systems„, pp. 7/1-7/8, London, May 1997.

T. Ojanperä, J. Sköld, J. Castro, L. Girard & A. Klein, “Comparison of multiple access schemes for UMTS,„ in Proc. Vehicular Technology Conference, Phoenix, May 1997.

1996

A. Klein, Multi user detection of CDMA Signals algorithms and their application to cellular mobile radio,“ in Multi-user detection of CDMA signals – algorithms and their application to cellular mobile radio. Düsseldorf: VDI-Verlag, Fortschrittberichte VDI, series 10, no. 423, 1996.

A. Klein, B. Steiner & A. Steil, „Known and novel diversity approaches as a powerful means to enhance the performance of cellular mobile radio systems,“IEEE Journal on Selected Areas in Communications, vol. 14, pp. 1784-1795, Dec 1996.

T. Ojanperä, P.-O. Anderson, J. Castro, L. Girard, A. Klein & R. Prasad, „Comparative study of hybrid multiple access schemes for UMTS,“ in Proc. ACTS Mobile Communications Summit, pp. 124-130, Granada, Nov 1996.

C. Math, A. Klein, W. Mohr & P. W. Baier, „Charakterisieren der Richtungsinhomogenität gemessener Kanalimpulsantworten,“ in Proc. , Zurich, Oct 1996.

J. Blanz, A. Klein & W. Mohr, „Measurement-based parameter adaptation of wideband spatial mobile radio channel models,“ in Proc. International Symposium on Spread Spectrum Techniques and Applications, pp. 91-97, Mainz, Sep 1996.

A. Klein & W. Mohr, „A statistical wideband mobile radio channel model including the directions-of-arrival,“ in Proc. International Symposium on Spread Spectrum Techniques and Applications,, pp. 102-106, Mainz, Sep 1996.

T. Ojanperä, J. Castro, D. Emmer, M. Gudmudson, P. Jung, A. Klein, G. Krämer, R. Pirhonen, L. Rademacher, J. Sköld & A. Toskala, „FRAMES – Hybrid multiple access technology,“ in Proc. International Symposium on Spread Spectrum Techniques and Applications, pp. 320-324, Mainz, Sep 1996.

A. Klein, G. Kawas Kaleh & P. W. Baier, „Zero forcing and minimum mean square error equalization for multi-user detection in code division multiple access channels,“IEEE Transactions on Vehicular Technology, vol. 45, pp. 276-287, May 1996.

A. Klein, „Modellieren und Vermessen von Mobilfunkkanälen,“ VDE-Seminar, University of Kaiserslautern, Kaiserslautern, May 1996.

P. W. Baier, A. Klein, W. Mohr, R. Thomas, P. Weber & B. Wirth, „Verfahren zum richtungsauflösenden, breitbandigen Bestimmen von Mobilfunk-Kanalimpulsantworten durch Messung und Nachverarbeitung,“ in Proc. ITG-Diskussionssitzung „Antennen für mobile Systeme“, pp. 149-152, Starnberg, Apr 1996.

A. Klein, W. Mohr, R. Thomas, P. Weber & B. Wirth, „Richtungsauflösende, breitbandige Ausbreitungsmessungen als Basis für die Bewertung intelligenter Antennenkonzepte für Mobilfunksysteme,“ in Proc. ITG-Diskussionssitzung „Antennen für mobile Systeme“, pp. 153-156, Starnberg, Apr 1996.

A. Klein, W. Mohr, R. Thomas, P. Weber & B. Wirth, „Direction-of-arrival of partial waves in wideband mobile radio channels for intelligent antenna concepts,“ in Proc. Vehicular Technology Conference, pp. 849-853, Atlanta, Apr/May 1996.

A. Klein, W. Mohr, R. Thomas, P. Weber & B. Wirth, „Richtungsauflösende, breitbandige Ausbreitungsmessungen zur Bewertung von Konzepten für intelligente Antennen,“ ITG-Diskussionssitzung „Meßtechnik im Mobilfunk“, Reisensburg, Mar 1996.

P. W. Baier, P. Jung & A. Klein, „Taking the challenge of multiple access for third generation cellular mobile radio systems – a European view,“IEEE Communications Magazine, vol. 34, pp. 82-89, Feb 1996.

1995

P. W. Baier, J. Blanz, P. Jung, A. Klein, M. Naßhan, A. Steil & B. Steiner, „Draft of section 7.4: Joint detection CDMA (to be included in the final report),“COST 231 TD(95)103, Poznan, Sep 1995.

P. W. Baier, J. Blanz, P. Jung, A. Klein, M. Naßhan, A. Steil & B. Steiner, „Topics for a COST 231 follow-on project,“COST 231 TD(95)129, Poznan, Sep 1995.

A. Klein, B. Steiner & A. Steil, „Known and novel diversity approaches in a JD-CDMA system concept developed within COST 231,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 512-516, Toronto, Sep 1995.

M. Naßhan, A. Steil, A. Klein & P. Jung, „Downlink cellular radio capacity of a joint detection CDMA mobile radio system,“ in Proc. Vehicular Technology Conference, pp. 474-478, Chicago, Jul 1995.

P. W. Baier & A. Klein, „Flexible hybrid multiple access schemes for 3rd generation mobile radio systems,“ Joint COST 227 / 231 Workshop on Mobile and Personal Communications, Florence, Apr 1995; in: E. del Re (Ed.), Mobile and Personal Communications. Proc. of the 2nd Joint COST 227 / 231 Workshop on Mobile and Personal Communications., pp. 31-43, Amsterdam: Elsevier Science, 1995.

A. Klein, B. Steiner & A. Steil, „A new view on diversity in JD-CDMA system concepts as compared with GSM,“COST 231 TD(95)17, Berne, Jan 1995.

A. Klein, J. Blanz, P. Jung, M. Naßhan, A. Steil, B. Steiner & P. W. Baier, „Summarizing review of a JD-CDMA third generation mobile radio system concept developed within COST 231 – Part 2,“COST 231 TD(95)18, Berne, Jan 1995.

1994

A. Klein, G. Kawas Kaleh & P. W. Baier, „Equalizers for multi-user detection in code division multiple access mobile radio systems,“Elektrotehniski Vestnik, vol. 61, pp. 243-251, 1994.

A. Klein, „Enhancing the TDMA/FDMA performance by diversity,“ Workshop on Advances in Spread Spectrum Air Interfaces for 3rd Generation Personal Communications, Delft, Dec 1994.

A. Klein, „Modulation schemes for simultaneous transmission of data streams of different bit rates,“Electronics Letters, vol. 30, pp. 1744-1745, Oct 1994.

A. Klein, G. Kawas Kaleh & P. W. Baier, „Equalizers for multi-user detection in code division multiple access mobile radio systems,“ in Proc. Vehicular Technology Conference, pp. 762-766, Stockholm, Jun 1994.

A. Klein, „Gemeinsame Detektion von CDMA-Signalen – Algorithmen und deren Anwendung im zellularen Mobilfunk,“ Nachrichtentechnisches Seminar der Universität Kaiserslautern, Kaiserslautern, Jun 1994.

J. Blanz, A. Klein, M. Naßhan & A. Steil, „Performance of a cellular hybrid C/TDMA mobile radio system applying joint detection and coherent receiver antenna diversity,“IEEE Journal on Selected Areas in Communications, vol. 12, pp. 568-579, May 1994.

A. Klein, G. Kawas Kaleh & P. W. Baier, „Equalizers for multi-user detection in code division multiple access mobile radio systems,“ COST 229 Workshop, Ljubljana, Apr 1994; in: J. F. Tasic (Ed.), Adaptive methods and emergent techniques for signal processing and communications, pp. 61-65, Ljubljana: Somaru, 1994.

J. Blanz, A. Klein, M. Naßhan & A. Steil, „Cellular spectrum efficiency of a joint detection CDMA mobile radio system,“ International Zurich Seminar on Digital Communications, Zurich, Mar 1994; in: C. G. Günther (Ed.), Lecture Notes in Computer Science, vol. 783: Mobile communications, advanced systems and components, pp. 184-195, Berlin: Springer, 1994.

T. Felhauer, A. Klein & P. W. Baier, „A low-cost method for CDMA and other applications to separate non orthogonal signals,“IEEE Transactions on Communications, vol. 42, pp. 881-883, Feb/Mar/Apr 1994.

A. Klein & P. W. Baier, „On the capacity of discrete-time synchronous Gaussian CDMA and TDMA channels,“International Journal of Electronics and Communications, vol. 48, pp. 28-33, Jan 1994.

J. Blanz, A. Klein, M. Naßhan & A. Steil, „Capacity of a cellular CDMA mobile radio system applying joint detection,“COST 231 TD(94)2, Lisbon, Jan 1994.

1993

A. Klein & P. W. Baier, „Linear unbiased data estimation in mobile radio systems applying CDMA,“IEEE Journal on Selected Areas in Communications, vol. 11, pp. 1058-1066, Sep 1993.

A. Klein, M. Werner & T. Zimmermann, „CDMA mobile radio system with joint detection, TCM and exploitation of reliability information at the receiver,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 473-477, Yokohama, Sep 1993.

A. Klein, M. Werner & T. Zimmermann, „CDMA-Mobilfunkübertragungsverfahren mit Interferenzeliminierung, TCM und empfängerseitiger Ausnutzung von Zuverlässigkeitsinformation,“ ITG-Fachtagung, Neu-Ulm, Sep 1993; in ITG-Fachbericht, vol. 124: Mobile Kommunikation, pp. 43-54, Berlin: VDE-Verlag, 1993.

P. W. Baier, T. Felhauer, A. Klein & A. Mämmelä, „Survey of linear block estimation algorithms for the detection of spread spectrum signals transmitted over frequency selective channels,“IEICE Transactions on Communications, vol. E76-B, pp. 825-834, Aug 1993.

1992

A. Klein & P. W. Baier, „Simultaneous cancellation of cross interference and ISI in CDMA mobile radio communications,“ in Proc. International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 118-122, Boston, Oct 1992.

B. Steiner & A. Klein, „Kanal- und Datenschätzung in synchronen CDMA-Mobilfunksystemen mit Interferenzeliminierung,“ Kleinheubacher Tagung, Kleinheubach, Oct 1992; in Kleinheubacher Berichte, vol. 36, pp. 253-269, 1993.

A. Klein, B. Steiner & P. W. Baier, „Kanal- und Datenschätzung in CDMA-Mobilfunksystemen mit vollständiger Eliminierung von Intersymbol- und Kreuzinterferenz,“ ITG-Diskussionssitzung „CDMA in Mobilfunksystemen“, Nuremberg, Jun 1992.

A. Klein & P. W. Baier, „On the capacity of synchronous Gaussian CDMA and TDMA channels,“COST 231 TD(92)63, Leeds, Apr 1992.

A. Klein & P. W. Baier, „Optimum unbiased data estimation in mobile radio systems applying CDMA,“ Workshop on Multi-User Communications, Essen, Mar 1992.

A. Klein & P. W. Baier, „Optimum unbiased data estimation in mobile radio systems applying CDMA,“COST 231 TD(92)16, Vienna, Jan 1992.

1991

P. W. Baier, P. Jung & A. Klein, „CDMA – ein günstiges Vielfachzugriffsverfahren für frequenzselektive und zeitvariante Mobilfunkkanäle,“Nachrichtentechnik Elektronik, vol. 41, pp. 223-227, Nov/Dec 1991.

P. W. Baier, P. Jung & A. Klein, „CDMA – ein günstiges Vielfachzugriffsverfahren für frequenzselektive und zeitvariante Mobilfunkkanäle,“ ITG-Diskussionssitzung „Der Funkkanal bei flächendeckenden Funkdiensten und seine Auswirkungen auf digitale Übertragungsverfahren“, Darmstadt, Sep 1991.

A. Klein, „Der Systemvorschlag der Firma Qualcomm,“ Arbeitssitzung „CDMA im Mobilfunk“, Kaiserslautern, Sep 1991.