selected publications academic article Messenger, R., Islam, M. Z., Whitlock, M., Spong, E., Morton, N., Claggett, L., ... Ekin, S. (2023). Real-Time Traffic End-of-Queue Detection and Tracking in UAV Video. International Journal of Intelligent Transportation Systems Research. 21(3), 493-505. Ibrahim, M., Arslan, H., Cirpan, H. A., & Ekin, S. (2023). Time-Frequency Warped Waveforms for Well-Contained Massive Machine Type Communications. IEEE Journal on Selected Areas in Communications. 41(6), 1900-1917. Kasi, S. K., Hashmi, U. S., Ekin, S., Abu-Dayya, A., & Imran, A. (2023). D-RAN: A DRL-Based Demand-Driven Elastic User-Centric RAN Optimization for 6G & Beyond. IEEE Transactions on Cognitive Communications and Networking. 9(1), 130-145. Raza, W., Abele, E., O'Hara, J., Sadr, B., LoPresti, P., Imran, A., ... Ekin, S. (2022). Toward a Hybrid RF/Optical Lunar Communication System (LunarComm). IEEE Network: the magazine of global information exchange. 36(6), 76-83. Strecker, K., Ekin, S., & O'Hara, J. F. (2022). Fundamental Performance Limits on Terahertz Wireless Links Imposed by Group Velocity Dispersion. IEEE Transactions on Terahertz Science and Technology. 12(1), 87-97. Hossain, F. F., Messenger, R., Captain, G. L., Ekin, S., Jacob, J. D., Taghvaeian, S., & O'Hara, J. F. (2022). Soil Moisture Monitoring Through UAS-Assisted Internet of Things LoRaWAN Wireless Underground Sensors. IEEE Access. 10, 102107-102118. Kasi, S. K., Hashmi, U. S., Nabeel, M., Ekin, S., & Imran, A. (2021). Analysis of Area Spectral & Energy Efficiency in a CoMP-Enabled User-Centric Cloud RAN. IEEE Transactions on Green Communications and Networking. 5(4), 1999-2015. Ibrahim, M., Hashmi, U. S., Nabeel, M., Imran, A., & Ekin, S. (2021). Embracing Complexity: Agent-Based Modeling for HetNets Design and Optimization via Concurrent Reinforcement Learning Algorithms. IEEE Transactions on Network and Service Management. 18(4), 4042-4062. Messenger, R., Strecker, K., Ekin, S., & O'Hara, J. F. (2021). Dispersion From Diffuse Reflectors and Its Effect on Terahertz Wireless Communication Performance. IEEE Transactions on Terahertz Science and Technology. 11(6), 695-703. Kachroo, A., Thornton, C. A., Sarker, M., Choi, W., Bai, H. e., Song, I., O'Hara, J. F., & Ekin, S. (2021). Emulating UAV Motion by Utilizing Robotic Arm for mmWave Wireless Channel Characterization. IEEE Transactions on Antennas and Propagation. 69(10), 6691-6701. Ekin, S., O'Hara, J. F., Turgut, E., Colston, N., & Young, J. L. (2021). A Do-It-Yourself (DIY) Light Wave Sensing and Communication Project: Low-Cost, Portable, Effective, and Fun. IEEE Transactions on Education. 64(3), 205-212. Yu, L. i., Abuella, H., Islam, M. Z., O'Hara, J. F., Crick, C., & Ekin, S. (2021). Gesture Recognition Using Reflected Visible and Infrared Lightwave Signals. IEEE Transactions on Human-Machine Systems. 51(1), 44-55. Abuella, H., Elamassie, M., Uysal, M., Xu, Z., Serpedin, E., Qaraqe, K. A., & Ekin, S. (2021). Hybrid RF/VLC Systems: A Comprehensive Survey on Network Topologies, Performance Analyses, Applications, and Future Directions. IEEE Access. 9, 160402-160436. Nabeel, M., Hashmi, U. S., Ekin, S., Refai, H., Abu-Dayya, A., & Imran, A. (2021). SpiderNet: Spectrally Efficient and Energy Efficient Data Aided Demand Driven Elastic Architecture for 6G. IEEE Network: the magazine of global information exchange. 35(5), 256-263. Islam, M. Z., O'Hara, J. F., Shadoan, D., Ibrahim, M., & Ekin, S. (2021). TV White Space Based Wireless Broadband Internet Connectivity: A Case Study With Implementation Details and Performance Analysis. IEEE Open Journal of the Communications Society. 2, 2449-2462. Kachroo, A., Popuri, A., Ibrahim, M., Imran, A., & Ekin, S. (2020). Interference Spreading through Random Subcarrier Allocation Technique and Its Error Rate Performance in Cognitive Radio Networks. Sensors. 20(19), 5700-5700. Piao, D., O'Hara, J., Bukkapatnam, S., & Ekin, S. (2020). Towards Non-Contact Glucose Sensing in Aqueous Turbid Medium at 1.1 Meters Distance. IEEE PHOTONICS JOURNAL. 12(4), 1-23. Kachroo, A., Ekin, S., & Imran, A. (2020). Statistical Modelling of Dynamic Interference Threshold and Its Effect on Network Capacity. IEEE Transactions on Vehicular Technology. 69(5), 5102-5114. Strecker, K., Ekin, S., & O'Hara, J. F. (2020). Compensating Atmospheric Channel Dispersion for Terahertz Wireless Communication. Scientific Reports. 10(1), 5816. Do, D., Nguyen, T., Ekin, S., Kaleem, Z., & Voznak, M. (2020). Joint User Grouping and Decoding Order in Uplink/Downlink MISO/SIMO-NOMA. IEEE Access. 8, 143632-143643. Kong, H., Ekin, S., Serpedin, E., & Qaraqe, K. A. (2019). Uplink achievable rate in underlay random access OFDM-based cognitive radio networks. 2019(1), 22-22. Abuella, H., Miramirkhani, F., Ekin, S., Uysal, M., & Ahmed, S. (2019). ViLDAR-Visible Light Sensing-Based Speed Estimation Using Vehicle Headlamps. IEEE Transactions on Vehicular Technology. 68(11), 10406-10417. O'Hara, J. F., Ekin, S., Choi, W., & Song, I. (2019). A Perspective on Terahertz Next-Generation Wireless Communications. Technologies. 7(2), 43-43. Kwasme, H., & Ekin, S. (2019). RSSI-Based Localization Using LoRaWAN Technology. IEEE Access. 7, 99856-99866. Kachroo, A., Vishwakarma, S., Dixon, J. N., Abuella, H., Popuri, A., Abbasi, Q. H., ... Ekin, S. (2019). Unmanned Aerial Vehicle-to-Wearables (UAV2W) Indoor Radio Propagation Channel Measurements and Modeling. IEEE Access. 7, 73741-73750. Abuella, H., Ekin, S., Ahmed, S., Miramirkhani, F., Kebapci, B., & Uysal, M. (2019). Wireless Sensing using Vehicle Headlamps for Intelligent Transportation Systems: Proof of Concept. MATEC Web of Conferences. 271, 06004-06004. Wang, X. u., Ekin, S., & Serpedin, E. (2018). Joint Spectrum Sensing and Resource Allocation in Multi-Band-Multi-User Cognitive Radio Networks. IEEE TRANSACTIONS ON COMMUNICATIONS. 66(8), 3281-3293. Farraj, A. K., & Ekin, S. (2013). Performance of Cognitive Radios in Dynamic Fading Channels Under Primary Outage Constraint. 73(3), 637-649. Ekin, S., Abdallah, M. M., Qaraqe, K. A., & Serpedin, E. (2013). A Study on Inter-Cell Subcarrier Collisions due to Random Access in OFDM-Based Cognitive Radio Networks. IEEE TRANSACTIONS ON COMMUNICATIONS. 61(5), 1695-1707. Qaraqe, K. A., Ekin, S., Agarwal, T., & Serpedin, E. (2013). Performance Analysis of Cognitive Radio Multiple-Access Channels Over Dynamic Fading Environments. Wireless Personal Communications: an international journal. 68(3), 1031-1045. Ekin, S., Yilmaz, F., Celebi, H., Qaraqe, K. A., Alouini, M., & Serpedin, E. (2012). Capacity limits of spectrum-sharing systems over hyper-fading channels. Wireless Communications and Mobile Computing. 12(16), 1471-1480. Ekin, S., Abdallah, M. M., Qaraqe, K. A., & Serpedin, E. (2012). Random Subcarrier Allocation in OFDM-Based Cognitive Radio Networks. IEEE Transactions on Signal Processing. 60(9), 4758-4774. Ekin, S., Qaraqe, K. A., & Serpedin, E. (2012). Performance analysis of cognitive radio multiple-access channels over dynamic fading environments. Qatar Foundation Annual Research Forum Proceedings. Ekin, S., Abdallah, M. M., Qaraqe, K. A., & Serpedin, E. (2012). Random subcarrier allocation in OFDM-based cognitive radio networks. abs/1207.0484. Qaraqe, K. A., Celebi, H., Mohammad, M., & Ekin, S. (2011). Performance Analysis of Ad Hoc Dispersed Spectrum Cognitive Radio Networks over Fading Channels. 2011(1), 849105. chapter Kachroo, A., Vishwakarma, S., Dixon, J. N., Abuella, H., Popuri, A., Abbasi, Q. H., ... Ekin, S. (2021). Ultrawideband Channel Measurements and Modeling for Unmanned Aerial VehicletoWearables (UAV2W) Systems. Autonomous Airborne Wireless Networks. (pp. 27-46). Wiley. Dervish, T. S., Teague, C. G., Liu, F., Coffey, A., Kachroo, A., Ekin, S., & Krasinski, J. S. (2019). Position at Response: A Novel Highly Accurate and Low Cost Laser Positioning System. Lecture Notes in Electrical Engineering. International Telecommunications Conference. (pp. 137-147). Springer Nature. conference paper Ibrahim, M., Ekin, S., & Ekti, A. R. (2023). Warping Functions Design for Long Warped ZT-DFT-s-OFDM. 280-285. Almohamad, A., Ekin, S., Hasna, M., & Qaraqe, K. A. (2023). Enhancing Performance in Hybrid RF/FSO Systems: Leveraging Level Crossing Rate for Seamless Switching. 289-293. Kasi, S. K., Hashmi, U. S., Ekin, S., & Imran, A. (2023). Learning-Aided Demand-Driven Elastic Architecture for 6G & Beyond. 1-6. Islam, Z., Yu, L. i., Abuella, H., O'Hara, J. F., Crick, C., & Ekin, S. (2023). Hand Gesture Recognition through Reflected Infrared Light Wave Signals. 1-5. Azmeen-ur-Rahman, S., Hasna, M. O., Ekin, S., & Choi, W. (2023). Two-Port Characterization of Symmetric Varactors in 65-nm CMOS Process for Mixer Applications. 1-4. Abele, E., Altunc, S., Kegege, O., Ryder, K., Azimi, B., Campola, M., ... O'Hara, J. F. (2023). Channel Measurements for Switching Strategies in Hybrid RF/Optical Communications. 1-11. Ibrahim, M., Hashmi, U. S., Nabeel, M., Imran, A., & Ekin, S. (2022). Complex Agent-based Modeling for HetNets Design and Optimization. 1-7. Kasi, S. K., Hashmi, U. S., Nabeel, M., Ekin, S., & Imran, A. (2022). Is CoMP Beneficial In User-Centered Wireless Networks?. 1-5. Cankurtaran, H. S., Kachroo, A., Choi, W., O'Hara, J., Yarkan, S., Qaraqe, K. A., Hasna, M. O., & Ekin, S. (2022). Propeller Effects on mmWave UAV Channels: A Statistical and Empirical Modeling Study. 30-35. Raza, W., Hasmi, U. S., Imran, A., & Ekin, S. (2022). Towards Positioning Error Impact Characterization and Minimization in User-Centric RAN. 734-739. Abele, E., Altunc, S., Kegege, O., Azimi, B., Lynaugh, K., Ekin, S., & O'Hara, J. (2022). S-band Network Analysis and Strategies for LEO Multi-CubeSat Science Missions. 1-10. Ibrahim, M., Roth, K., West, J., Ekin, S., Mitchell, T., & Jacob, J. D. (2022). Unmanned Measurement of an ILS System Using a Software Defined Radio Thornton, C., Kachroo, A., Bai, H. e., Ekin, S., & Choi, W. (2021). De-embedding Motion Artifacts from Robotic Arm Assisted Propagation Measurements. 1-6. Strecker, K., O'Hara, J., & Ekin, S. (2021). Deterministic and stochastic effects in broadband terahertz links affected by atmospheric temporal dispersion. 4. Messenger, R., Strecker, K., O'Hara, J., & Ekin, S. (2021). Improved surface reflectivity and dispersion using metal doped paints in terahertz band. 5. Strecker, K. L., Ekin, S., & O'Hara, J. F. (2020). Correction of channel dispersion in terahertz wireless communications. Proceedings of SPIE. 113900n-113900n-10. Abuella, H., & Ekin, S. (2020). Non-Contact Vital Signs Monitoring Through Visible Light Sensing. IEEE Sensors Journal. 3859-3870. Gao, Q., Ekin, S., Qaraqe, K., & Serpedin, E. (2019). Bias Allocation and Precoding for Tricolor Visible Light Communications with Signal-dependent Noise. 61-66. Gao, Q., Ekin, S., Qaraqe, K., & Serpedin, E. (2019). Capacity Maximizing Power Allocation for Multi-Channel Visible Light Communications. 79-82. Abuella, H., & Ekin, S. (2019). A New Paradigm for Non-contact Vitals Monitoring using Visible Light Sensing. 2017 14TH ANNUAL IEEE INTERNATIONAL CONFERENCE ON SENSING, COMMUNICATION, AND NETWORKING (SECON). 1-2. Kachroo, A., & Ekin, S. (2018). Impact of Secondary User Interference on Primary Network in Cognitive Radio Systems. 1-5. Mestiraihi, M. A., Abuella, H., & Ekin, S. (2018). Indoor Occupancy Estimation Using Visible Light Sensing (VLS) System. 1-5. Wang, X. u., Ekin, S., & Serpedin, E. (2018). Joint Decision of Sensing Threshold and Power Allocation in OFDM Cognitive Radio Networks. 2013 National Conference on Communications, NCC 2013. 1-6. Wang, X. u., Ekin, S., Qaraqe, K., & Serpedin, E. (2017). Fair Resource Allocation in Downlink OFDM-Based Cognitive Radio Networks. 1-4. Wang, X. u., Ekin, S., & Serpedin, E. (2017). Optimal Resource Allocation for Downlink OFDM-Based Cognitive Radio Networks. 2017 INTERNATIONAL SYMPOSIUM ON NETWORKS, COMPUTERS AND COMMUNICATIONS (ISNCC). 1-6. Abuella, H., Ekin, S., & Uysarl, M. (2017). ViLDAR: A Novel Speed Estimation System Using Visible Light in Vehicles. 1-6. Ekin, S., Abdallah, M. M., Qaraqe, K. A., & Serpedin, E. (2013). An Investigation of Inter-cell Subcarrier Collisions in OFDM-Based Cognitive Radio Networks. 105-109. Ekin, S., Serpedin, E., Abdallah, M., & Qaraqe, K. (2013). On the capacity of a cognitive user with subcarrier collisions over rayleigh fading channels. Advanced International Conference on Telecommunications, AICT. 72-78. Ekin, S., Qaraqe, K. A., Abdallah, M. M., & Serpedin, E. (2012). On OFDM-Based Cognitive Radio Spectrum Sharing Systems with Random Access. 34-38. Ekin, S., Agarwal, T., Qaraqe, K. A., & Serpedin, E. (2011). Capacity of Cognitive Radio Multiple-Access Channels in Dynamic Fading Environments. 1-4. Ekin, S., Yarkan, S., Qaraqe, K. A., & Serpedin, E. (2011). On the Statistics of Sub-carrier Collisions for Cell-edge Users and Air Interface Capacity in OFDMA Systems. 1-4. Ekin, S., Yilmaz, F., Celebi, H., Qaraqe, K. A., Alouini, M., & Serpedin, E. (2009). Achievable Capacity of a Spectrum Sharing System over Hyper Fading Channels. 1-6. Ekin, S., Yilmaz, F., Celebi, H., Qaraqe, K. A., Alouini, M., & Serpedin, E. (2009). Achievable Capacity of a Spectrum Sharing System over Hyper Fading Channels. 3992-+. Ekin, S., El-Osery, A. I., & Abd-Almageed, W. (2008). RF-Based Location Determination in Heterogenous Sensor Networks Using Rayleigh Fading Channel. 1-6. institutional repository document Rutherford, M. W., Whitacre, B. E., Captain, L., Ekin, S., Angle, J., Hensley, T., & O'Hara, J. F. (2023). Promoting Rural Entrepreneurship through Technology: A Case Study using Productivity Enhancing Technology Experience Kits (PETE-Kits) Islam, M. Z., Martin, B., Gotcher, C., Martinez, T., O'Hara, J. F., & Ekin, S. (2023). Respiratory Anomaly Detection using Reflected Infrared Light-wave Signals Martin, B., Islam, M. Z., Gotcher, C., Martinez, T., Ekin, S., & O'Hara, J. F. (2023). The Fundamental Limits of Light-Wave Sensing for Non-Contact Respiration Monitoring Ibrahim, M., Arslan, H., Cirpan, H. A., & Ekin, S. (2023). Time-Frequency Warped Waveforms for Well-Contained Massive Machine Type Communications Islam, M. Z., Ekin, S., & O'Hara, J. F. (2023). Prospects and Applications of Incoherent Light in Non-contact Wireless Sensing Systems Islam, M. Z., Yu, L. i., Abuella, H., O'Hara, J. F., Crick, C., & Ekin, S. (2023). Hand Gesture Recognition through Reflected Infrared Light Wave Signals Abuella, H., Islam, M. Z., Messenger, R., O'Hara, J. F., & Ekin, S. (2023). Analysis and Empirical Validation of Visible Light Path Loss Model for Vehicular Sensing and Communication Islam, M. Z., Martin, B., Gotcher, C., Martinez, T., O'Hara, J. F., & Ekin, S. (2023). Non-contact Respiratory Anomaly Detection using Infrared Light-wave Sensing Messenger, R., Islam, M. Z., Whitlock, M., Spong, E., Morton, N., Claggett, L., ... Ekin, S. (2023). Real-Time Traffic End-of-Queue Detection and Tracking in UAV Video Raza, W., Abele, E., OHara, J., Sadr, B., LoPresti, P., Imran, A., ... Ekin, S. (2022). Towards a Hybrid RF/Optical Lunar Communication System (LunarComm) Messenger, R., Strecker, K., Ekin, S., & O'Hara, J. (2021). Dispersion from Diffuse Reflectors and its Effect of Terahertz Wireless Communication Performance Strecker, K., Ekin, S., & OHara, J. (2021). Fundamental Performance Limits on Terahertz Wireless Links Imposed by Group Velocity Dispersion Piao, D., O'Hara, J., Bukkapatnam, S., & Ekin, S. (2020). Towards Non-Contact Glucose Sensing in Aqueous Turbid Medium at ~1.1 Meters Distance Ekin, S., O'Hara, J. F., Turgut, E., Colston, N., & Young, J. L. (2020). A Do-It-Yourself (DIY) Light-Wave Sensing and Communication Project: Low-Cost, Portable, Effective, and Fun Yu, L. i., Abuella, H., Islam, M. Z., O'Hara, J. F., Crick, C., & Ekin, S. (2020). Gesture Recognition using Reflected Visible and Infrared Light Wave Signals Abuella, H., Elamassie, M., Uysal, M., Xu, Z., Serpedin, E., Qaraqe, K. A., & Ekin, S. (2020). Hybrid RF/VLC Systems: A Comprehensive Survey on Network Topologies, Performance Analyses, Applications, and Future Directions Kachroo, A., Thornton, C. A., Sarker, M., Choi, W., Bai, H. e., Song, I., O'Hara, J., & Ekin, S. (2020). Emulating UAV Motion by Utilizing Robotic Arm for mmWave Wireless Channel Characterization Kachroo, A., Ekin, S., & Imran, A. (2020). Statistical Modelling of Dynamic Interference Threshold and Its Effect on Network Capacity Strecker, K., Ekin, S., & OHara, J. F. (2019). Compensating Atmospheric Channel Dispersion for Terahertz Wireless Communication Kachroo, A., & Ekin, S. (2018). Impact of Secondary User Interference on Primary Network in Cognitive Radio Systems Abuella, H., & Ekin, S. (2018). Non-contact Vital Signs Monitoring through Visible Light Sensing Abuella, H., Miramirkhani, F., Ekin, S., Uysal, M., & Ahmed, S. (2018). ViLDAR - Visible Light Sensing Based Speed Estimation using Vehicle's Headlamps Ekin, S., Abdallah, M. M., Qaraqe, K. A., & Serpedin, E. (2012). Random Subcarrier Allocation in OFDM-Based Cognitive Radio Networks
teaching activities ECEN685 Directed Studies Instructor ECEN691 Research Instructor ESET455 Wireless Trnsmission Sys Instructor
education and training Ph.D. in Electrical and Computer Engineering, Texas A&M University - (College Station, Texas, United States) 2012