• Ali Ekşim, “Wireless Communications and Networks: Recent Advances” ISBN: 978-953-51-0189-5, INTECH Press, 14 March 2012.
URL: http://www.intechopen.com/books/wireless-communications-and-networks-recent-advances

• Ali Ekşim and Tolga Demirci, “Ultimate Secrecy in Millimeter Wave and Terahertz Wireless Communications,” Journal of the Faculty of Engineering and Architecture of Gazi University, v:36, no:3, pp. 1733-1746, May 2021.
URL: https://dergipark.org.tr/en/download/article-file/882556
• Ali Ekşim and Hasan Yetik, “Audio Quality Enhancement for ETSI TS 102 361 Digital Mobile Radio Standard Compliant Radios Using Volume Optimization and Better Forward Error Correction Scheme,” Journal of the Faculty of Engineering and Architecture of Gazi University, v:33, no:2, pp. 665-673, June 2018.
URL: https://dergipark.org.tr/tr/download/article-file/500084
• Ali Ekşim, “Performance of the Multiple Antennas in ISO 18000-7 Standard with Using Limited Feedback Schemes”, Journal of Communications Software and Systems (JCOMSS), v:9, no:1, pp. 97-102.
URL: https://jcomss.fesb.unist.hr/index.php/jcomss/article/view/161
• Ali Ekşim and Ertuğrul Murat, “Novel Feedback Calculation Technique for Improved Transmit Scheme,” Radioengineering, v:21, no:4, pp. 1187-1193, December 2012.
URL: https://www.radioeng.cz/fulltexts/2012/12_04_1187_1193.pdf
• Ali Ekşim, “Extended Balanced Space-Time Block Coding with Transmit Antenna Selection,” the Transactions on Emerging Telecommunications Technologies, v:23, no:2, pp. 163-171, March 2012, DOI: 10.1002/ett.1521.
URL: https://onlinelibrary.wiley.com/doi/10.1002/ett.1521
• Ali Ekşim and Mehmet E. Çelebi, “Performance Improvement of Binary Sensor Based Statistical STBC Cooperative Diversity Using Limited Feedback,” IETE Technical Review, v:27, no:1, pp. 60-67, Jan-Feb 2010.
URL: https://www.tandfonline.com/doi/abs/10.4103/0256-4602.58975
• Ali Ekşim and Mehmet E. Çelebi, “Extended Balanced Space-Time Block Coding for Wireless Communications” IET Signal Processing, Special Issue: Advanced Signal Processing for Wireless and Mobile Communication, v:3, no:6, pp. 476-484, November 2009.
URL: https://digital-library.theiet.org/content/journals/10.1049/iet-spr.2009.0020
• M. Oğuz Sunay and Ali Ekşim, “Fair Scheduling for Spectrally Efficient Multi-Service Data Provisioning”, the International Journal on Communication Systems, v:17: pp. 615-642, August 2004.
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/dac.671

• Ali Ekşim and Mehmet E. Çelebi, “Extended Balanced Space-Time Block Coding: Full Rate Full Diversity Wireless Multicasting,” International Journal of Computer Theory and Engineering (IJCTE), v:4, no:2, pp. 194-197, April 2012.
URL: http://www.ijcte.org/papers/449-A135.pdf
• Ali Ekşim and Mehmet E. Çelebi, “Extended Cooperative Balanced Space-Time Block Coding for Increased Efficiency in Wireless Sensor Networks (Work in Progress)” Networking 2009, LNCS 5550, pp.456-467.
URL: https://link.springer.com/chapter/10.1007/978-3-642-01399-7_36
• Ali Ekşim and Mustafa Kara, “Cyber Attack Detection Methods on Open Source Intelligence” Duzce UniversityJournal of Science &Technology, vol. 7, no: 1 pp. 577-593, January 2019.
URL: https://dergipark.org.tr/en/pub/dubited/issue/43004/494416
• Ali Ekşim and İrem Civelek, “Semi-Automated Cyber Security Model Based on Open Source Intelligence over Twitter Tweets” Duzce UniversityJournal of Science &Technology, vol. 7, no: 1 pp. 827-836, January 2019.
URL: https://dergipark.org.tr/en/pub/dubited/issue/43004/492834
• Ali Ekşim and Mehmet E. Çelebi, “Extended Cooperative Balanced Space-Time Block Coding in Wireless Sensor Networks”, Istanbul Technical University Engineering, March 2011.
• Ali Ekşim and Mehmet E. Çelebi, “Received SNR Based Code and Antenna/Relay Selection for Limited Feedback Communication” DEÜ Journal of Engineering Sciences. Special Issue: Selected articles from the SİU 2010 conference. vol. 12, no. 3, October 2010.
URL: http://web.deu.edu.tr/fmd/s36/S36-m5.pdf

• Hasan Yetik, Ali Ekşim and Selçuk Paker, “Earthquake Epicenter Localization Using Fiber Optic Distributed Acousting Sensing for Earthquake Early Warning Purposes”, to appear Proceedings of the IEEE Photonics Society Summer Tropicals Meeting Series 2023, Sicily, Italy, 17- 19 July 2023.
URL: https://ieeexplore.ieee.org/document/10224408
• Hasan Yetik, Mücahit Kavaklı, Umut Uludağ, Ali Ekşim and Selçuk Paker, “Earthquake Epicenter Localization Using Fiber Optic Distributed Acousting Sensing”, to appear Proceedings of the URSI combined Atlantic / Asia-Pasific Radio Science Conference 2022 (URSI AT-AP-RASC 2022), Gran Canaria, Spain, 29 May – 3 June 2022.
URL: https://ieeexplore.ieee.org/document/9814220
• Hasan Yetik, Mücahit Kavaklı, Umut Uludağ, Ali Ekşim and Selçuk Paker, “Earthquake Detection Using Fiber Optic Distributed Acousting Sensing”, to appear Proceedings of the 13th International Conference on Electrical and Electronics Engineering, Bursa, Turkey, 25-27 November 2021.
URL: https://ieeexplore.ieee.org/document/9677835

• Ali Ekşim and Tolga Demirci, “Ultimate Secrecy in Cooperative and Multi-Hop Wireless Communications,” to appear Proceedings of the 33th General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS 2020), Rome, Italy, 29 August – 5 September 2020.
URL: https://ieeexplore.ieee.org/document/9232409
• Ali Ekşim and Tolga Demirci, “Ultimate Secrecy in Wireless Communications,” to appear Proceedings of the 11th International Conference on Electrical and Electronics Engineering, Bursa, Turkey, 28-30 November 2019.
URL: https://ieeexplore.ieee.org/document/8990653
• Ali Ekşim and Hasan Yetik, “Performance Improvement of 7200 bps IMBE Vocoder with Improved FEC,” to appear Proceedings of the 2nd URSI AT-RASC, Gran Canaria, Spain, 28 May – 1 June 2018.
URL: https://ieeexplore.ieee.org/document/8471452
• Ali Ekşim and Hasan Yetik, ”Voice Quality Enhancement for ETSI Digital Mobile Radio Standard Using Improved FEC Scheme,” to appear Proceedings of the 40th International Conference on Telecommunications and Signal Processing (TSP 2017), Barcelona, Spain, July 5-7, 2017.
URL: https://ieeexplore.ieee.org/document/8075998
• Ali Ekşim and Hasan Yetik, “Performance Improvement of AMBE 3600 bps Vocoder with Improved FEC,” to appear Proceedings of the Thirteenth Advanced International Conference on Telecommunications (AICT 2017), Venice, Italy, June 25-29, 2017.
URL: https://thinkmind.org/articles/aict_2017_3_10_10020.pdf
• Ali Ekşim and Serhat Gül, “Buffered Multi-layered Modified Constant Modulus Algorithm”, the 9th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP 2014), Manchester, UK, July 23-25, 2014.
URL: https://ieeexplore.ieee.org/document/6923907
• Ali Ekşim and Serhat Gül, “A New Blind Equalization Algorithm for M-PSK Constellations”, the Tenth Advanced International Conference on Telecommunications (AICT 2014), Paris, France, July 20-24, 2014.
URL: https://www.thinkmind.org/index.php?view=article&articleid=aict_2014_1_20_10024
• Ali Ekşim and Ertuğrul Murat, “Low Complex Feedback Information Calculation Technique for Improved Transmit Scheme”, the Proceedings of the 5th Int. Conf. on Communications, Computers and Applications (MIC-CAA2012), Istanbul, Turkey, October 12-14, 2012.
URL: https://ieeexplore.ieee.org/document/6516794
• Ali Ekşim, Atakan Arslan, Mesut Kartal and Serkan Şimşek, “Performance of the Multi Antenna RFID Tags in ISO 18000-7 Standard”, the Proceedings of the 20th Int. Conf. On Software, Telecommunications and Computer Networks (SOFTCOM 2012), Split, Croatia, September 11-13, 2012. (This article is selected by the Journal of Communications Software and Systems (JCOMSS) for special issue).
URL: https://ieeexplore.ieee.org/document/6347577
• Ali Ekşim, “Performance of the Improved Transmit Scheme in V2V and V2I Communications”, the Proceedings of the IEEE Int. Symposium on Antennas and Propagation and USNS/URSI National Radio Science Meeting, Chicago, Illinois, USA, July 8-14, 2012.

• Ertuğrul Murat, Ali Ekşim, Sinan Kahraman and Mahmut Ş. Sağıroğlu, “TCM-4D Decoder Implementation for 64 and 128-QAM in Limited Logic Area”, the Proceedings of the IEEE Int. Symposium on Antennas and Propagation and USNS/URSI National Radio Science Meeting, Chicago, Illinois, USA, July 8-14, 2012.
• Ali Ekşim and Mehmet E. Çelebi, “Full Rate Full Diversity Multicasting for Vehicle-to-Vehicle and Vehicle-to-Infrastructure Communications”, the Proceedings of the 8th International Conference on Wireless and Mobile Communications (ICWMC 2012), Venice, Italy, June 24-29, 2012.
URL: https://www.thinkmind.org/index.php?view=article&articleid=icwmc_2012_13_40_20147
• Ali Ekşim, Selman Kulaç and Murat H. Sazlı, “DTV Spectrum Sensing with Pilot Tone Filtering”, the Proceedings of the 30th URSI General Assembly and Scientific Symposium of International Union of Radio Science (URSI-GASS 2011), Istanbul, Turkey, August 13-20, 2011, (The Young Scientist Award is received).
URL: https://ieeexplore.ieee.org/document/6050529
The Young Scientist Award URL: https://www.ursi.org/young_scientists.php
• Ali Ekşim and Mehmet E. Çelebi, “Full Rate Full Diversity Cooperative Extended Balanced Space-Time Blok Coding for Wireless Multicasting”, the Proceedings of the 7th International Wireless Communications and Mobile Computing Conference, İstanbul, Turkey, 4-8 July, 2011.
URL: https://ieeexplore.ieee.org/document/5982788
• Ali Ekşim, “Cooperative Extended Balanced Space-Time Block Coding with Relay Selection”, the European Wireless (EW2011), Vienna, Austria, April 27-29, 2011.
URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=5897998
• Ali Ekşim and Mehmet E. Çelebi, “Full diversity full rate wireless multicasting with extended balanced space-time block coding”, the Proceedings of the International Conference on Information and Computer Applications (ICICA 2011), Dubai, UAE, March 18-20, 2011. (This article is selected among ICICA 2011 papers and published by the International Journal of Computer Theory and Engineering).
• Ali Ekşim, “Transmit Antenna Selection for Extended Balanced Space-Time Block Codes”, the Proceedings of the International Wireless Communications and Mobile Computing Conference (IWCMC 2010), Caen, France, June 28-July 2, 2010.
URL: https://dl.acm.org/doi/10.1145/1815396.1815582
• Ali Ekşim and Mehmet E. Çelebi, “On The Performance Analysis of the Extended Balanced Space-Time Block Coding”, the 3rd International Conference on Intelligent & Advanced Systems (ICIAS2010), Kuala Lumpur, Malaysia, June 15-17, 2010.
URL: https://ieeexplore.ieee.org/document/5716242
• Ali Ekşim, Selman Kulaç and Murat H. Sazlı, “Effective cooperative spectrum sensing in IEEE 802.22 standard with time diversity”, the ACTEA 2009, Zouk Mosbeh, Lebanon, July 15-17, 2009.
URL: https://ieeexplore.ieee.org/document/5227849
• Ali Ekşim and Mehmet E. Çelebi, “Improvement on Cooperative Balanced Space-Time Block Coding with Relay Selection”, the IEEE 6th International Symposium on Communication Systems, Networks and Digital Signal Processing Conference, Graz, Austria, July 23-25, 2008. (This article is selected for Travel Grant).
URL: https://ieeexplore.ieee.org/document/4610778
• Ali Ekşim and Mehmet E. Çelebi, “Diversity Enhancement with Cooperative Balanced Space-Time Block Coding”, the 18th IEEE Int`l Symposium on Personal, Indoor & Mobile Communications, Athens, Greece, 3-6 September, 2007.
URL: https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=4394532
• M. Oğuz Sunay and Ali Ekşim, “Wireless Multicast with Multi-User Diversity”, the IEEE VTC- Spring 2004 Conference, Milan, Italy, May 17-19, 2004.
URL: https://ieeexplore.ieee.org/document/1390520
• M. Oğuz Sunay and Ali Ekşim, “Wireless Multicast Packet Data Provisioning using Opportunistic Multiple Access”, the 10th IEEE Symposium on Communications & Vehicular Technology, Eindhoven, Netherlands, November 13, 2003.
• M. Oğuz Sunay and Ali Ekşim, (Invited Paper) “On Scheduling for Spectrally Efficient Resource Allocation for Delay Tolerant Wireless Data Transmission”, Euro / Informs Joint International Meeting 2003, Istanbul, Turkey, 6-10 July 2003.
• Ali Ekşim and M. Oğuz Sunay, “On Scheduling for Delay Tolerant Data in HDR,'' Proceedings of the IEEE International Conference on Advances in Wireless Communications, Victoria, Canada, September 23, 2002.
• Ali Ekşim and Onur Cumurcu, “Microstrip antenna design with low frequency”, the Proceedings of the 26th IEEE Signal Processing and Communications Conference (SIU 2018), Çeşme, İzmir, Turkey, May 2-5, 2018.
URL: https://ieeexplore.ieee.org/document/8404783
• Ali Ekşim and Hasan Yetik, “Performance improvement of AMBE 3600 bps vocoder with adaptive forward error correction”, the Proceedings of the 26th IEEE Signal Processing and Communications Conference (SIU 2018), Çeşme, İzmir, Turkey, May 2-5, 2018.
URL: https://ieeexplore.ieee.org/document/8404286
• Ali Ekşim, “Performance of the Cooperative Extended Balanced Space-Time Block Coding with Relay Selection in V2V and V2I Communications”, the Proceedings of the 20th IEEE Signal Processing and Communications Conference (SIU 2012), Fethiye, Muğla, Turkey, April 18-20, 2012.
URL: https://ieeexplore.ieee.org/document/6204636
• Ali Ekşim and Mehmet E. Çelebi, “Full rate full diversity multicasting: Extended Balanced Space-Time Block Coding”, the Proceedings of the 19th IEEE Signal Processing and Communications Conference (SIU 2011), Kemer, Antalya, Turkey, April 20-22, 2011.
URL: https://ieeexplore.ieee.org/abstract/document/5929633
• Selman Kulaç, Ali Ekşim and Murat H. Sazlı, “DTV Spectrum Sensing with Using Pilot Tone”, the 19th IEEE Signal Processing and Communications Conference (SIU 2011), Kemer, Antalya, Turkey, April 20-22, 2011.
URL: https://ieeexplore.ieee.org/abstract/document/5929680
• Ali Ekşim and Mehmet E. Çelebi, “Received SNR Based Code and Antenna Selection for Limited Feedback Communication”, the 18th IEEE Signal Processing and Communications Conference, Diyarbakır, Turkey, April 22-24, 2010. (This article is selected top 9 papers among 241 SIU papers and published by the DEÜ Journal of Engineering Sciences).
URL: https://ieeexplore.ieee.org/document/5653804
• Ali Ekşim and Mehmet E. Çelebi, “Extended Cooperative Balanced Space Time Block Coding in Wireless Networks for Spectral Efficiency”, the 17th IEEE Signal Processing and Communications Conference, Antalya, Turkey, April 9-11, 2009.
URL: https://ieeexplore.ieee.org/document/5136489
• Ali Ekşim, Selman Kulaç and Murat H. Sazlı, “Cooperative Spectrum Sensing in IEEE 802.22 Standard”, the 17th IEEE Signal Processing and Communications Conference, Antalya, Turkey, April 9-11, 2009.
URL: https://ieeexplore.ieee.org/document/5136506
• Ali Ekşim and Mehmet E. Çelebi, “Novel Hybrid Relay and Code Selection Protocol”, the IEEE Signal Processing and Communications Conference, Didim, Turkey, April 20-22, 2008.
URL: https://ieeexplore.ieee.org/document/4632653
• Ali Ekşim, Selman Kulaç and Murat H. Sazlı, “Cooperative Spectrum Sensing for Mobile Users”, the IEEE Signal Processing and Communications Conference, Didim, Turkey, April 20-22, 2008.
URL: https://ieeexplore.ieee.org/document/4632747
• Ali Ekşim and Mehmet E. Çelebi, “Comparison of Cooperative Path Selection Techniques”, the IEEE Signal Processing and Communications Conference, Eskişehir, Turkey, June 11-13, 2007.
URL: https://ieeexplore.ieee.org/document/4298594
• Ali Ekşim and Mehmet E. Çelebi, “Cooperative Balanced Space-Time Block Codes for Relay Networks”, the IEEE Signal Processing and Communications Conference, Eskişehir, Turkey, June 11-13, 2007.
URL: https://ieeexplore.ieee.org/document/4298836
• Ali Ekşim and Öznur Özkasap, "Performance Comparison of Multicast Routing Protocols”, YPBS 2002, Gebze, Kocaeli, Turkey, 24-25 October 2002.

• Ali Ekşim and Mehmet E. Çelebi, “Performance Analysis of Binary Sensor-Based Cooperative Diversity Using Limited Feedback” Smart Wireless Sensor Networks, ISBN: 978-953-307-261-6, INTECH Press, December 2010.
URL: https://www.intechopen.com/chapters/12454
• Ali Ekşim, “Wireless Packet Data System Design for Multimedia Service Provisioning Using Multi-User Diversity”, ISBN: 978-3-8465-9747-7, LAP LAMBERT Academic Publishing, November, 2011.
URL: https://www.lap-publishing.com/catalog/details/store/gb/book/978-3-8465-9747-7/wireless-packet-data-system-design-for-multimedia-service-provisioning

• Third Cycle (Doctoral): Telekomünikasyon Mühendisliği, İstanbul Teknik Üniversitesi, 2011.
• Second Cycle (Master's): Elektronik ve Bilgisayar Mühendisliği, Koç Üniversitesi, 2004.
• First Cycle (Undergraduate): Elektrik-Elektronik Mühendisliği, Yeditepe Üniversitesi, 2001.