Mitarbeitende

• Reinforcement learning for wireless communications
• Resource allocation in wireless networks
• Resilience and performance guarantees

Lehre

• Fundamentals of Reinforcement Learning

Publikationen

• S. Dongare, A. Ortiz, and Klein, A. „Deep Reinforcement Learning for Task Allocation in Energy Harvesting Mobile Crowdsensing“, IEEE Global Communications Conference (Globecom), Rio de Janeiro, Brazil, 2022. Accepted
• M. Wirth, A. Ortiz and A. Klein. “Risk-Aware Mulit-Armed Bandits for Vehicular Communications (wird in neuem Tab geöffnet)„, IEEE 95th Vehicular Technology Conference (VTC-Spring)', Helsinki, Finland, 2022.
• B. Simon, S. Dongare, T. Mahn, A. Ortiz and A. Klein, „Delay- and Incentive-Aware Crowdsensing: A Stable Matching Approach for Coverage Maximization“, In IEEE International Conference on Communications. Seoul, South Korea, May, 2022
• K. Kiekenap, A. Ortiz and A. Klein. „Energy-Optimal Short Packet Transmission for Time-Critical Control“, IEEE 94th Vehicular Technology Conference (VTC2021-Fall) 2021, Virtual, 2021.
• A. Ortiz, T. Weber and A. Klein. „Multi-Agent Reinforcement Learning for Energy Harvesting Two-Hop Communications with a Partially Observable System State“ IEEE Transactions on Green Communications and Networking 5(1), 2021.
• B. Yilmaz, A. Ortiz and A. Klein. „Delay Minimization for Edge Computing with Dynamic Server Computing Capacity: A Learning Approach(wird in neuem Tab geöffnet)“'IEEE Global Communications Conference (Globecom)', Taipei, Taiwan, 2020.
• A. Ortiz, A. Asadi, G. H. Sim, D. Steinmetzer and M. Hollick, „SCAROS: A Scalable and Robust Self-backhauling Solution for Highly Dynamic Millimeter-Wave Networks (wird in neuem Tab geöffnet),“, IEEE Journal on Selected Areas in Communications, vol. 37, pp. 2585-2698, Dec 2019.
• A. Ortiz, A. Asadi, M. Engelhardt, A. Klein & M. Hollick, „CBMoS: Combinatorial Bandit Learning for Mode Selection and Resource Allocation in D2D Systems (wird in neuem Tab geöffnet),“ IEEE Journal on Selected Areas in Communications, vol. 37, pp. 2225-2238, Oct 2019.
• A. Ortiz, T. Weber & A. Klein, „Resource Allocation in Energy Harvesting Multiple Access Scenarios via Combinatorial Learning (wird in neuem Tab geöffnet),“ in Proc. IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Cannes, France, Jul 2019.
• F. Hohmann, A. Ortiz & A. Klein, „Optimal Resource Allocation Policy for Multi-Rate Opportunistic Forwarding (wird in neuem Tab geöffnet),“ in Proc. IEEE Wireless Communications and Networking Conference (WCNC), Marrakech, Morocco, Apr 2019.
• A. Ortiz, T. Weber & A. Klein, "A Two-Layer Reinforcement Learning Solution for Energy Harvesting Data Dissemination Scenarios, (wird in neuem Tab geöffnet) " in Proc. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Calgary, Canada, Apr 2018.
• A. Ortiz, H. Al-Shatri, X. Li, T. Weber & A. Klein, "Reinforcement Learning for Energy Harvesting Decode-and-Forward Two-Hop Communications, (wird in neuem Tab geöffnet) " IEEE Transactions on Green Communications and Networking, vol. 1, pp. 309-319, Sep 2017.
• C. Meurisch, T. Nguyen, M. Kromm, A. Ortiz, R. Mogk & M. Mühlhäuser, "DisVis 2.0: Decision Support for Rescue Missions Using Predictive Disaster Simulations with Human-Centric Models, (wird in neuem Tab geöffnet) " in Proc. International Conference on Computer Communications and Networks (ICCCN), Calgary, Canada, Jul 2017.
• X. Li, A. Ortiz, H. Al Shatri, A. Klein & T. Weber, "Delay-Constrained Data Transmission for Energy Harvesting Transmitter, (wird in neuem Tab geöffnet) " in Proc. 11th International ITG Conference on Systems, Communications and Coding (SCC), Hamburg, Germany, Feb 2017
• A. Ortiz, H. Al-Shatri, X. Li, T. Weber & A. Klein, "A Learning Based Solution for Energy Harvesting Decode-and-Forward Two-Hop Communications, (wird in neuem Tab geöffnet) " in Proc. IEEE Global Communications Conference (Globecom), Washington, USA, Dec. 2016.
• A. Ortiz, H. Al-Shatri, X. Li, T. Weber & A. Klein, "Reinforcement Learning for Energy Harvesting Point-to-Point Communications, (wird in neuem Tab geöffnet) " in Proc. IEEE International Conference on Communications, Kuala Lumpur, Malaysia, May 2016.
• A. Ortiz, H. Al Shatri, X. Li, T. Weber & A. Klein, "Throughput Maximization in Two-Hop Energy Harvesting Communications, (wird in neuem Tab geöffnet) " in Proc. IEEE Twelfth International Symposium on Wireless Communication Systems ISWCS, Brussels, Belgium, Aug 2015.
• A. Ortiz, H. Degenhardt & A. Klein, "A Resource Requirement Aware Transmit Strategy for Non-Regenerative Multi-Way Relaying, (wird in neuem Tab geöffnet) " in Proc. IEEE Wireless Communication and Networking Conference (WCNC), New Orleans, USA, Mar 2015.