Mitarbeitende

Forschungsinteressen

• Energy harvesting
• Reinforcement learning for communications.
• Cooperative communication

Lehre

• Communication Technolgy II (Exercises)
• Project Seminar Wireless Communication

Publikationen

• 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.