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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,“, 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,“ 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,“ 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,“ 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,“ 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,“ 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,“ 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,“ 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,“ 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,“ 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,“ 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,“ in Proc. IEEE Wireless Communication and Networking Conference (WCNC), New Orleans, USA, Mar 2015.