Research

Research Interests

• Waveform Design for 5G Wireless Networks

• Unmanned Aerial Vehicle (UAV) Assisted Wireless Communications

• Energy Harvesting Wireless Sensor Networks

• Autonomous Underwater Vehicle (AUV) Networks

• Multistatic Sonar Sensor Networks

Publications [Google Scholar]

• A. Bereketli, "A Spatial TDMA-Based Medium Access Control Protocol for Underwater Acoustic Backscatter Networks", to appear in IEEE Transactions on Green Communications and Networking, 2025.

• B. Kılınç, A. Bereketli, "Double Deep Q-Learning Based UAV Base Station Positioning (UBSP)for Sum-Rate and Coverage Maximization", to appear in Proc. IEEE Military Communications Conference (MILCOM) 2025.

• A. Avcioglu, A. Bereketli, O. F. Bay, "Three Dimensional Volume Coverage in Multistatic Sonar Sensor Networks", IEEE Access, vol. 10, pp. 123560-123578, Nov. 2022.

• A. Bereketli, "Interference-Free Source Deployment for Coverage in Underwater Acoustic Backscatter Networks", Springer Peer-to-Peer Networking and Applications, vol. 15, no. 3, pp. 1577–1594, May 2022.

• A. Bereketli, M. Tumcakir, B. Yeni, "P-AUV: Position Aware Routing and Medium Access for Ad Hoc AUV Networks", Elsevier Journal of Network and Computer Applications, vol. 125, pp. 146-154, Jan. 2019.

• A. Bereketli, E. Dogan, M. Donus, O. Onen, "Uzun Menzilli ve Yuksek Ses Seviyeli Akustik Sistem Tasarimi (The Design of a Long Range and High Sound Level Acoustical System)", Savunma Teknolojileri Kongresi (Defence Technologies Conference) SAVTEK 2018, pp. 707-714, Ankara, Turkey, June 27-29, 2018.

• O. Onen, A. Bereketli, "Yuksek Ses Seviyesi Cikisli Boynuzlu ve Yonlu Hoparlor Dizini Optimizasyonu (Optimization of a Horn Loudspeaker Array for High Sound Level Output and Directivity)", 12. Ulusal Akustik Kongre ve Sergisi (12th National Acoustics Congress and Exhibition), pp. 317-324, Izmir, Turkey, Sep. 14-15, 2017.

• A. Bereketli, I. Yazgı, B. Yeni, M. Koseoglu, "Battery-Powered AUV Network Lifetime Under Energy Constraints", in Proc. MTS/IEEE OCEANS'17, pp. 1-5, Aberdeen, Scotland, June 19-22, 2017.

• A. Bereketli, B. Yeni, M. Tumcakir, I. Yazgi, S. Avsar, "Analysis of OFDM Communication Performance and Connectivity for an AUV Network", Undersea Defence Technology (UDT) 2017, Bremen, Germany, May 30-June 1, 2017.

• A. Bereketli, M. Tumcakir, I. Yazgi, B. Yeni, M. Koseoglu, T. M. Duman, "Connectivity Analysis of an AUV Network with OFDM Based Communications", in Proc. IEEE OES International Symposium on Underwater Technology (UT), pp. 1-5, Busan, Korea, Feb. 21-24, 2017.

• B. Yeni, M. Tumcakir, A. Bereketli, E. Mehmetcik, S. Avsar, "Hareketli Sualti Araclari icin Tasarsiz Akustik Haberlesme Agi Gelistirilmesi (Development of an Ad Hoc Communication Network for Mobile Underwater Vehicles)", Savunma Teknolojileri Kongresi (Defence Technologies Conference) SAVTEK 2016, Ankara, Turkey, Oct. 12-14, 2016.

• E. Mehmetcik, A. Bereketli, "Sonar Sistemlerinde Kullanilan Temel Sinyal Isleme Algoritmalari ve Saha Test Tecrubeleri (Basic Signal Processing Algorithms Used in Sonar Systems and Field Test Experiences)", Savunma Teknolojileri Kongresi (Defence Technologies Conference) SAVTEK 2016, Ankara, Turkey, Oct. 12-14, 2016.

• M. Koseoglu, A. Bereketli, I. Yazgi, B. Yeni, "Probabilistic Broadcast for Dense AUV Networks", in Proc. MTS/IEEE OCEANS, pp. 1-5, Monterey, California, USA, Sep. 19-23, 2016. 

• A. Bereketli, M. B. Guldogan, T. Kolcak, T. Gudu, A. L. Avsar, "Experimental Results for Direction of Arrival Estimation with a Single Acoustic Vector Sensor in Shallow Water", Journal of Sensors, vol. 2015, Article ID 401353, 10 pages, 2015. doi:10.1155/2015/401353.

• A. Gunes, M. B. Guldogan, A. Bereketli, "A Comparative Study on the Performances of the DF Techniques Using a Single Acoustic Vector Sensor", in Proc. MTS/IEEE OCEANS 2014, pp. 1-7, St. John’s, Canada, Sep. 14-19, 2014.

• A. Gunes, A. Bereketli, M. B. Guldogan, "Analysis of Direction Finding Techniques Using a Single Underwater Acoustic Vector Sensor", in Proc. 22nd IEEE Signal Processing and Communication Applications Conference (SIU), pp. 289-292, Trabzon, Turkey, Apr. 23-25, 2014.

• A. Bereketli, H. Turken, S. Bilgen, "Cross Layer Power Adaptive CSMA/CA for Sink Powered Underwater Acoustic Sensor Networks", in Proc. 12th Annual Mediterranean Ad Hoc Networking Workshop (Med-Hoc-Net), pp. 26-33, Ajaccio, France, June 24-26, 2013.

• T. Gudu, T. Kolcak, A. Bereketli, S. Kocyigit, S. Alparslan, "A Scalable Hardware Architecture for High Performance Acoustic Beamforming", Undersea Defence Technology (UDT), Hamburg, Germany, June 18-20, 2013.

• A. Bereketli, S. Bilgen, "Remotely Powered Underwater Acoustic Sensor Networks", IEEE Sensors Journal, vol. 12, no. 12, pp. 3467-3472, Dec. 2012.

• A. Bereketli, T. Gudu, S. Kocyigit, T. Kolcak, "Yuksek Performanslı Akustik Huzme Olusturma icin Olceklenebilir Sistem Mimarisi (A Scalable System Architecture for High Performance Acoustic Beamforming)", Savunma Teknolojileri Kongresi (Defence Technologies Conference) SAVTEK 2012, pp. 95-102, Ankara, Turkey, June 20-22, 2012.

• A. Bereketli, O. B. Akan, "Communication Coverage in Wireless Passive Sensor Networks", IEEE Communications Letters, vol. 13, no. 2, pp. 133-135, Feb. 2009.

• A. Bereketli, O. B. Akan, "Event-to-Sink Directed Clustering in Wireless Sensor Networks", in Proc. IEEE Wireless Communications and Networking Conference (WCNC) 2009, Budapest, Hungary, Apr. 5-8, 2009.

• A. Bereketli, O. B. Akan, "Tactical Wireless Sensor Networks: Applications and Challenges", in NATO-ARW Volume, edited by S. Olariu, 2007.

• B. Atakan, A. Bereketli, O. B. Akan, "Homeostasis-based Multimedia Transport in Wireless Sensor Networks", WOrkshop on advances in Wireless NETworking (WOWNET), IFIP Networking 2007, Atlanta, USA, May 14-18, 2007.

Patents

• E. Dogan, A. Bereketli, M. Donus, "Shooting Range Estimation Method Based on Miss Distance and Weapon Caliber Prediction for Firearms," US Patent US11693103B2, July 4, 2023. 

• A. Bereketli, S. Avsar, E. Dogan, M. Donus, "Method for Acoustic Detection of Shooter Location," US Patent US10887698B2, Jan. 5, 2021.

• A. Bereketli, S. Bilgen, "Uzaktan Enerji Beslemeli Sualti Akustik Algilayici Aglar (UBSAAA) icin Algilayici," TR Patent 2013/09368 B, July 21, 2017.

• A. Bereketli, S. Bilgen, "Sensor for Remotely Powered Underwater Acoustic Sensor Networks (RPUASN)," US Patent US9551610B2, Jan. 24, 2017.

• A. Bereketli, E. Dogan, M. Donus, "Atesli Silahlar icin Iska Mesafesi ve Kalibre Kestirimine Dayali Atis Yeri Menzil Kestirim Yontemi," TR 2020/06105, Apr. 2020 (Pending).

Thesis Supervised

• Co-Supervisor to "Three-Dimensional Coverage Deployment and Network Optimization in Multistatic Sonar Sensor Networks for the Internet of Underwater Things", Ph.D. thesis by Alper AVCIOGLU, Graduate School of Informatics, Gazi University, Ankara, Turkey, Mar. 2023.

• Co-Supervisor to "Acoustic Direction of Arrival Estimation of Unmanned Aerial Vehicles", master's thesis by Serhat KARAASLAN, Department of Electrical and Electronics Engineering, Hacettepe University, Ankara, Turkey, Jan. 2021.

• Co-Supervisor to "Deep Learning Based Detection and Classification of Unmanned Aerial Vehicles", master's thesis by Ozan DEMİR, Department of Electrical and Electronics Engineering, Gazi University, Ankara, Turkey, Dec. 2019.