Sennur Ulukus

Submitted Journal Papers (Under Review)

  1. A. Aytekin, M. Nomeir and S. Ulukus, Quantum X-Secure B-Byzantine T-Colluding Private Information Retrieval, submitted July 2024.

  2. S. Liyanaarachchi, S. Mitrolaris, P. Mitra and S. Ulukus, 6G at 1/6 g: The Future of Cislunar Communications, submitted July 2024.

  3. P. Kaswan, M. Bastopcu, S. Ulukus, S. R. Etesami and T. Başar, Strategic Profit Generation in Age-Based Systems, submitted July 2024.

  4. P. Kaswan and S. Ulukus, Misinformation Spread in Gossip Networks: The Influence of Transmission Mutations, submitted July 2024.

  5. P. Kaswan and S. Ulukus, Sacrificing Freshness for Reliable Information in Age-Based Gossiping, submitted July 2024.

  6. I. Cosandal, N. Akar and S. Ulukus, Multi-Threshold AoII-Optimum Sampling Policies for CTMC Information Sources, submitted July 2024.

  7. S. Liyanaarachchi, S. Ulukus and N. Akar, Cyclic Scheduler Design for Minimizing Age of Information in Massive Scale Networks Susceptible to Packet Errors, submitted June 2024.

  8. A. Srivastava and S. Ulukus, Network Connectivity–Information Freshness Tradeoff in Information Dissemination Over Networks, submitted May 2024.

  9. N. Akar and S. Ulukus, Age of Information in a Single-Source Generate-at-Will Dual-Server Status Update System, submitted April 2024.

  10. M. Doger and S. Ulukus, Transaction Capacity, Security and Latency in Blockchains, submitted February 2024.

  11. P. Kaswan and S. Ulukus, Timeliness: A New Design Metric and a New Attack Surface, submitted December 2023.

  12. P. Kaswan, P. Mitra, A. Srivastava and S. Ulukus, Age of Information in Gossip Networks: A Friendly Introduction and Literature Survey, submitted December 2023.

  13. E. O. Gamgam, N. Akar and S. Ulukus, Minimizing Age of Information With Generate at Will Status Updates and Age-Agnostic Cyclic Scheduling, submitted December 2023.

  14. A. Aytekin, M. Nomeir, S. Vithana and S. Ulukus, Quantum X-Secure E-Eavesdropped T-Colluding Symmetric Private Information Retrieval, submitted November 2023.

  15. Z. Wang and S. Ulukus, Fully Robust Federated Submodel Learning in a Distributed Storage System, submitted June 2023.

Journal Papers (Published/To Appear)

  1. P. Kaswan and S. Ulukus, Timeliness in Cache-Aided Networks with Non-Poisson Updating, IEEE Trans. on Communications, to appear 2024.

  2. M. Doger and S. Ulukus, Bitcoin Security-Latency Under Network Delay, IEEE Trans. on Information Theory, to appear 2024.

  3. Y. E. Sagduyu, T. Erpek, A. Yener and S. Ulukus, Will 6G be Semantic Communications? Opportunities and Challenges from Task Oriented and Secure Communications to Integrated Sensing, IEEE Network Magazine, to appear 2024.

  4. N. Akar and S. Ulukus, Query-Based Sampling of Heterogeneous CTMCs: Modeling and Optimization with Binary Freshness, IEEE Trans. on Communications, to appear 2024.

  5. S. Banerjee and S. Ulukus, The Freshness Game: Timely Communications in the Presence of an Adversary, IEEE/ACM Trans. on Networking, to appear 2024.

  6. Y. E. Sagduyu, T. Erpek, A. Yener and S. Ulukus, Joint Sensing and Semantic Communications with Multi-Task Deep Learning, IEEE Communications Magazine, to appear 2024.

  7. P. Mitra and S. Ulukus, Age-Aware Gossiping in Network Topologies, IEEE Trans. on Communications, to appear 2024.

  8. S. Liyanaarachchi and S. Ulukus, The Role of Early Sampling in Age of Information Minimization in the Presence of ACK Delays, IEEE Trans. on Information Theory, to appear 2024.

  9. S. Vithana, Z. Wang and S. Ulukus, Private Information Retrieval and Its Extensions: An Introduction, Open Problems, Future Directions, IEEE BITS the Information Theory Magazine, to appear 2024.

  10. S. Vithana and S. Ulukus, Information-Theoretically Private Federated Submodel Learning with Storage Constrained Databases, IEEE Trans. on Information Theory, 70(8):6041-6059, August 2024.

  11. P. Kaswan and S. Ulukus, Timestomping Vulnerability of Age-Sensitive Gossip Networks, IEEE Trans. on Communications, 72(7):4193-4205, July 2024.

  12. S. Vithana and S. Ulukus, Private Read-Update-Write with Controllable Information Leakage for Storage-Efficient Federated Learning with Top r Sparsification, IEEE Trans. on Information Theory, 70(5):3669-3692, May 2024.

  13. Z. Wang and S. Ulukus, Private Federated Submodel Learning via Private Set Union, IEEE Trans. on Information Theory, 70(4):2903-2921, April 2024.

  14. S. Vithana and S. Ulukus, Deceptive Information Retrieval, Entropy, 26, 244, March 2024.

  15. S. Vithana and S. Ulukus, Private Read Update Write (PRUW) in Federated Submodel Learning (FSL): Communication Efficient Schemes With and Without Sparsification, IEEE Trans. on Information Theory, 70(2):1320-1348, February 2024.

  16. P. Kaswan, M. Bastopcu and S. Ulukus, Timely Cache Updating in Parallel Multi-Relay Networks, IEEE Trans. on Wireless Communications, 23(1):2-15, January 2024.

  17. P. Kaswan and S. Ulukus, How Robust are Timely Gossip Networks to Jamming Attacks?, IEEE Jour. on Selected Areas in Information Theory, 4: 820-832, December 2023.

  18. Y. Sagduyu, T. Erpek, S. Ulukus and A. Yener, Is Semantic Communications Secure? A Tale of Multi-Domain Adversarial Attacks, IEEE Communications Magazine, 61(11):50-55, November 2023.

  19. S. Banerjee, S. Ulukus and A. Ephremides, Age of Information Games Between Power Constrained Schedulers and Adversaries, Journal of Communications and Networks, 25(5):631-642, October 2023.

  20. Y. Sagduyu, S. Ulukus and A. Yener, Task-Oriented Communications for NextG: End-to-End Deep Learning and AI Security Aspects, IEEE Wireless Communications, 30(3):52-60, June 2023.

  21. B. Buyukates, E. Ozfatura, S. Ulukus and D. Gunduz, Gradient Coding with Dynamic Clustering for Straggler-Tolerant Distributed Learning, IEEE Trans. on Communications, 71(6):3317-3332, June 2023.

  22. B. Arasli and S. Ulukus, Group Testing with a Graph Infection Spread Model, Information, special issue on Advanced Technologies in Storage, Computing, and Communication, 14, 48, January 2023.

  23. B. Arasli and S. Ulukus, Dynamic Infection Spread Model Based Group Testing, Algorithms, special issue on Combinatorial Optimization, Graph, and Network Algorithms, 16, 25, January 2023.

  24. B. Arasli and S. Ulukus, Dynamic SAFFRON: Disease Control Over Time Via Group Testing, Algorithms, special issue on Combinatorial Optimization, Graph, and Network Algorithms, 15(11), 437, November 2022.

  25. M. Mortaheb, C. Vahapoglu and S. Ulukus, Personalized Federated Multi-Task Learning Over Wireless Fading Channels, Algorithms, special issue on Gradient Methods for Optimization, 15(11), 421, November 2022.

  26. B. Kim, Y. Sagduyu, K. Davaslioglu, T. Erpek and S. Ulukus, Adversarial Machine Learning for NextG Covert Communications using Multiple Antennas, Entropy, special issue on Machine Learning for Communications, 24(8), 1047, July 2022.

  27. Z. Wang and S. Ulukus, Symmetric Private Information Retrieval at the Private Information Retrieval Rate, IEEE Jour. on Selected Areas in Information Theory, 3(2):350-360, June 2022.

  28. B. Kim, Y. Sagduyu, K. Davaslioglu, T. Erpek and S. Ulukus, Channel-Aware Adversarial Attacks Against Deep Learning-Based Wireless Signal Classifiers, IEEE Trans. on Wireless Communications, 21(6):3868-3880, June 2022.

  29. M. Bastopcu and S. Ulukus, Using Timeliness in Tracking Infections, Entropy, special issue on Age of Information: Concept, Metric and Tool for Network Control, 24(6), 779, May 2022.

  30. S. Vithana, K. Banawan and S. Ulukus, Semantic Private Information Retrieval, IEEE Trans. on Information Theory, 68(4):2635-2652, April 2022.

  31. B. Buyukates, M. Bastopcu and S. Ulukus, Version Age of Information in Clustered Gossip Networks, IEEE Jour. on Selected Areas in Information Theory, 3(1):85-97, March 2022.

  32. S. Ulukus, S. Avestimehr, M. Gastpar, S. Jafar, R. Tandon and C. Tian, Private Retrieval, Computing and Learning: Recent Progress and Future Challenges, IEEE Jour. on Selected Areas in Communications, 40(3):729-748, March 2022.

  33. Z. Wang, K. Banawan and S. Ulukus, Private Set Intersection: A Multi-Message Symmetric Private Information Retrieval Perspective, IEEE Trans. on Information Theory, 68(3):2001-2019, March 2022.

  34. E. Ozfatura, S. Ulukus and D. Gunduz, Coded Distributed Computing with Partial Recovery, IEEE Trans. on Information Theory, 68(3):1945-1959, March 2022.

  35. A. Arafa, J. Yang, S. Ulukus and H. V. Poor, Timely Status Updating Over Erasure Channels Using an Energy Harvesting Sensor: Single and Multiple Sources, IEEE Trans. on Green Communications and Networking, 6(1):6-19, March 2022.

  36. M. Bastopcu and S. Ulukus, Age of Information for Updates with Distortion: Constant and Age-Dependent Distortion Constraints, IEEE/ACM Transactions on Networking, 29(6):2425-2438, December 2021.

  37. A. Soysal and S. Ulukus, Age of Information in G/G/1/1 Systems: Age Expressions, Bounds, Special Cases, and Optimization, IEEE Trans. on Information Theory, 67(11):7477-7489, November 2021.

  38. M. Bastopcu, B. Buyukates and S. Ulukus, Selective Encoding Policies for Maximizing Information Freshness, IEEE Trans. on Communications, 69(9):5714-5726, September 2021.

  39. B. Clerckx, K. Huang, L. R. Varshney, S. Ulukus and M.-S. Alouini, Wireless Power Transfer for Future Networks: Signal Processing, Machine Learning, Computing, and Sensing, IEEE Jour. of Selected Topics in Signal Processing, 15(5):1060-1094, August 2021.

  40. R. D. Yates, Y. Sun, D. R. Brown III, S. K. Kaul, E. Modiano and S. Ulukus, Age of Information: An Introduction and Survey, IEEE Jour. on Selected Areas in Communications, 39(5):1183-1210, May 2021.

  41. B. Buyukates, A. Soysal and S. Ulukus, Scaling Laws for Age of Information in Wireless Networks, IEEE Trans. on Wireless Communications, 20(4):2413-2427, April 2021.

  42. Z. Wang, K. Banawan and S. Ulukus, Multi-Party Private Set Intersection: An Information-Theoretic Approach, IEEE Jour. on Selected Areas in Information Theory, 2(1):366-379, March 2021.

  43. M. Bastopcu and S. Ulukus, Information Freshness in Cache Updating Systems, IEEE Trans. on Wireless Communications, 20(3):1861-1874, March 2021.

  44. B. Buyukates and S. Ulukus, Timely Distributed Computation with Stragglers, IEEE Trans. on Communications, 68(9):5273-5282, September 2020.

  45. K. Banawan and S. Ulukus, Private Information Retrieval Through Wiretap Channel II: Privacy Meets Security, IEEE Trans. on Information Theory, 66(7):4129-4149, July 2020.

  46. K. Banawan, B. Arasli, Y.-P. Wei and S. Ulukus, The Capacity of Private Information Retrieval from Heterogeneous Uncoded Caching Databases, IEEE Trans. on Information Theory, 66(6):3407-3416, June 2020.

  47. E. Ozfatura, S. Ulukus and D. Gunduz, Straggler-aware Distributed Learning: Communication Computation Latency Trade-off, Entropy, special issue on the Interplay between Storage, Computing, and Communications from an Information-Theoretic Perspective, 22(5), 544, May 2020.

  48. Y.-P. Wei and S. Ulukus, The Capacity of Private Information Retrieval with Private Side Information Under Storage Constraints, IEEE Trans. on Information Theory, 66(4):2023-2031, April 2020.

  49. A. Arafa, J. Yang, S. Ulukus and H. V. Poor, Age-Minimal Transmission for Energy Harvesting Sensors with Finite Batteries: Online Policies, IEEE Trans. on Information Theory, 66(1):534-556, January 2020.

  50. K. Banawan and S. Ulukus, Noisy Private Information Retrieval: On Separability of Channel Coding and Information Retrieval, IEEE Trans. on Information Theory, 65(12):8232-8249, December 2019.

  51. Y.-P. Wei, K. Banawan and S. Ulukus, The Capacity of Private Information Retrieval with Partially Known Private Side Information, IEEE Trans. on Information Theory, 65(12):8222-8231, December 2019.

  52. Y.-P. Wei, B. Arasli, K. Banawan and S. Ulukus, The Capacity of Private Information Retrieval from Decentralized Uncoded Caching Databases, Information, special issue on Private Information Retrieval: Techniques and Applications, 10(12), 372, November 2019.

  53. K. Banawan and S. Ulukus, Asymmetry Hurts: Private Information Retrieval Under Asymmetric Traffic Constraints, IEEE Trans. on Information Theory, 65(11):7628-7645, November 2019.

  54. K. Banawan and S. Ulukus, Secure Degrees of Freedom in Networks with User Misbehavior, Entropy, special issue on Multiuser Information Theory II, 21(10), 945, September 2019.

  55. A. Arafa and S. Ulukus, Timely Updates in Energy Harvesting Two-hop Networks: Offline and Online Policies, IEEE Trans. on Wireless Communications, 18(8):4017-4030, August 2019.

  56. B. Buyukates, A. Soysal and S. Ulukus, Age of Information in Multihop Multicast Networks, Journal of Communications and Networks, special issue on Age of Information, 21(3):256-267, June 2019.

  57. M. Bastopcu and S. Ulukus, Minimizing Age of Information with Soft Updates, Journal of Communications and Networks, special issue on Age of Information, 21(3):233-243, June 2019.

  58. Y.-P. Wei, K. Banawan and S. Ulukus, Fundamental Limits of Cache-Aided Private Information Retrieval with Unknown and Uncoded Prefetching, IEEE Trans. on Information Theory, 65(5):3215-3232, May 2019.

  59. K. Banawan and S. Ulukus, The Capacity of Private Information Retrieval from Byzantine and Colluding Databases, IEEE Trans. on Information Theory, 65(2):1206-1219, February 2019.

  60. K. Banawan and S. Ulukus, Secure Degrees of Freedom Region of Static and Time-Varying Gaussian MIMO Interference Channel, IEEE Trans. on Information Theory, 65(1):444-461, January 2019.

  61. A. Baknina, O. Ozel and S. Ulukus, Energy Harvesting Communications under Explicit and Implicit Temperature Constraints, IEEE Trans. on Wireless Communications, 17(10):6680-6692, October 2018.

  62. K. Banawan and S. Ulukus, Multi-Message Private Information Retrieval: Capacity Results and Near-Optimal Schemes, IEEE Trans. on Information Theory, 64(10):6842-6862, October 2018.

  63. A. Arafa, T. Tong, M. Fu, S. Ulukus and W. Chen, Delay Minimal Policies in Energy Harvesting Communication Systems, IEEE Trans. on Communications, 66(7):2918-2930, July 2018.

  64. A. Baknina and S. Ulukus, Energy Harvesting Multiple Access Channels: Optimal and Near-Optimal Online Policies, IEEE Trans. on Communications, 66(7):2904-2917, July 2018.

  65. Y.-P. Wei, K. Banawan and S. Ulukus, Cache-Aided Private Information Retrieval with Partially Known Uncoded Prefetching: Fundamental Limits, IEEE Jour. on Selected Areas in Communications, 36(6):1126-1139, June 2018.

  66. A. Arafa, A. Baknina and S. Ulukus, Online Fixed Fraction Policies in Energy Harvesting Communication Systems, IEEE Trans. on Wireless Communications, 17(5):2975-2986, May 2018.

  67. A. Arafa and S. Ulukus, Mobile Energy Harvesting Nodes: Offline and Online Optimal Policies, IEEE Trans. on Green Communications and Networking, 2(1):143-153, March 2018.

  68. B. Gurakan, O. Kaya and S. Ulukus, Energy and Data Cooperative Multiple Access Channel with Intermittent Data Arrivals, IEEE Trans. on Wireless Communications, 17(3):2016-2028, March 2018.

  69. P. Mukherjee and S. Ulukus, Secure Degrees of Freedom of the Multiple Access Wiretap Channel with Multiple Antennas, IEEE Trans. on Information Theory, 64(3):2093-2103, March 2018.

  70. K. Banawan and S. Ulukus, The Capacity of Private Information Retrieval from Coded Databases, IEEE Trans. on Information Theory, 64(3):1945-1956, March 2018.

  71. P. Mukherjee and S. Ulukus, Secrecy in MIMO Networks with No Eavesdropper CSIT, IEEE Trans. on Communications, 65(10):4382-4391, October 2017.

  72. A. Baknina and S. Ulukus, Online Scheduling for Energy Harvesting Channels with Processing Costs, IEEE Trans. on Green Communications and Networking, 1(3):281-293, September 2017.

  73. K. Tutuncuoglu, O. Ozel, A. Yener and S. Ulukus, The Binary Energy Harvesting Channel with a Unit-Sized Battery, IEEE Trans. on Information Theory, 63(7):4240-4256, July 2017.

  74. P. Mukherjee, R. Tandon and S. Ulukus, Secure Degrees of Freedom Region of the Two-User MISO Broadcast Channel with Alternating CSIT, IEEE Trans. on Information Theory, 63(6):3823-3853, June 2017.

  75. A. Arafa, A. Baknina and S. Ulukus, Energy Harvesting Two-Way Channels with Decoding and Processing Costs, IEEE Trans. on Green Communications and Networking, 1(1):3-16, March 2017.

  76. P. Mukherjee, J. Xie and S. Ulukus, Secure Degrees of Freedom of One-Hop Wireless Networks With No Eavesdropper CSIT, IEEE Trans. on Information Theory, 63(3):1898-1922, March 2017.

  77. A. Baknina and S. Ulukus, Optimal and Near-Optimal Online Strategies for Energy Harvesting Broadcast Channels, IEEE Jour. on Selected Areas in Communications – Series on Green Communications and Networking, 34(12):3696-3708, December 2016.

  78. K. Banawan and S. Ulukus, MIMO Wiretap Channel Under Receiver-Side Power Constraints with Applications to Wireless Power Transfer and Cognitive Radio, IEEE Trans. on Communications, 64(9):3872-3885, September 2016.

  79. O. Ozel, S. Ulukus and P. Grover, Energy Harvesting Transmitters that Heat Up: Throughput Maximization under Temperature Constraints, IEEE Trans. on Wireless Communications, 15(8):5440-5452, August 2016.

  80. B. Gurakan and S. Ulukus, Cooperative Diamond Channel with Energy Harvesting Nodes, IEEE Jour. on Selected Areas in Communications – Series on Green Communications and Networking, 34(5):1604-1617, May 2016.

  81. J. Xie and S. Ulukus, Secure Degrees of Freedom Regions of Multiple Access and Interference Channels: The Polytope Structure, IEEE Trans. on Information Theory, 62(4):2044-2069, April 2016.

  82. Y.-P. Wei and S. Ulukus, Polar Coding for the General Wiretap Channel with Extensions to Multiuser Scenarios, IEEE Jour. on Selected Areas in Communications, 34(2):278-291, February 2016.

  83. B. Gurakan, O. Ozel and S. Ulukus, Optimal Energy and Data Routing in Networks with Energy Cooperation, IEEE Trans. on Wireless Communications, 15(2):857-870, February 2016.

  84. A. Arafa and S. Ulukus, Optimal Policies for Wireless Networks with Energy Harvesting Transmitters and Receivers: Effects of Decoding Costs, IEEE Jour. on Selected Areas in Communications – Series on Green Communications and Networking, 33(12):2611-2625, December 2015.

  85. A. Yener and S. Ulukus, Wireless Physical Layer Security: Lessons Learned from Information Theory, Proceedings of the IEEE, 103(10):1814-1825, October 2015.

  86. J. Xie and S. Ulukus, Secure Degrees of Freedom of Multi-user Networks: One-Time-Pads in the Air via Alignment, Proceedings of the IEEE, 103(10):1857-1873, October 2015.

  87. O. Ozel, E. Ekrem and S. Ulukus, Gaussian Wiretap Channel with Amplitude and Variance Constraints, IEEE Trans. on Information Theory, 61(10):5553-5563, October 2015.

  88. J. Xie and S. Ulukus, Secure Degrees of Freedom of K-User Gaussian Interference Channels: A Unified View, IEEE Trans. on Information Theory, 61(5):2647-2661, May 2015.

  89. T-Y. Liu, P. Mukherjee, S. Ulukus, S-C. Lin and Y-W. P. Hong, Secure Degrees of Freedom of MIMO Rayleigh Block Fading Wiretap Channels with No CSI Anywhere, IEEE Trans. on Wireless Communications, 14(5):2655-2669, May 2015.

  90. O. Ozel, K. Tutuncuoglu, S. Ulukus and A. Yener, Fundamental Limits of Energy Harvesting Communications, IEEE Communications Magazine, 53(4):126-132, April 2015.

  91. K. Tutuncuoglu, A. Yener and S. Ulukus, Optimum Policies for an Energy Harvesting Transmitter Under Energy Storage Losses, IEEE Jour. on Selected Areas in Communications, 33(3):467-481, March 2015.

  92. S. Ulukus, A. Yener, E. Erkip, O. Simeone, M. Zorzi, P. Grover and K. Huang, Energy Harvesting Wireless Communications: A Review of Recent Advances, IEEE Jour. on Selected Areas in Communications, 33(3):360-381, March 2015. (2019 IEEE Communications Society Best Tutorial Paper Award)

  93. E. Ekrem and S. Ulukus, An Outer Bound for the Vector Gaussian CEO Problem, IEEE Trans. on Information Theory, 60(11):6870-6887, November 2014.

  94. O. Ozel, K. Shahzad and S. Ulukus, Optimal Energy Allocation for Energy Harvesting Transmitters with Hybrid Energy Storage and Processing Cost, IEEE Trans. on Signal Processing, 62(12):3232-3245, June 2014.

  95. J. Xie and S. Ulukus, Secure Degrees of Freedom of One-hop Wireless Networks, IEEE Trans. on Information Theory, 60(6):3359-3378, June 2014.

  96. B. Gurakan, O. Ozel, J. Yang and S. Ulukus, Energy Cooperation in Energy Harvesting Communications, IEEE Trans. on Communications, 61(12):4884-4898, December 2013.

  97. R. Bassily, E. Ekrem, X. He, E. Tekin, J. Xie, M. Bloch, S. Ulukus and A. Yener, Cooperative Security at the Physical Layer: A Summary of Recent Advances, IEEE Signal Processing Magazine, 30(5):16-28, September 2013.

  98. J. Xie and S. Ulukus, Sum Secure Degrees of Freedom of Two-Unicast Layered Wireless Networks, IEEE Jour. on Selected Areas in Communications, 31(9):1931-1943, September 2013.

  99. E. Ekrem and S. Ulukus, Secure Lossy Transmission of Vector Gaussian Sources, IEEE Trans. on Information Theory, 59(9):5466-5487, September 2013.

  100. O. Ozel, J. Yang and S. Ulukus, Optimal Transmission Schemes for Parallel and Fading Gaussian Broadcast Channels with an Energy Harvesting Rechargeable Transmitter, Elsevier Computer Communications, special issue for selected papers from WiOpt 2011, 36(12):1360-1371, July 2013.

  101. R. Tandon, S. Ulukus and K. Ramchandran, Secure Source Coding with a Helper, IEEE Trans. on Information Theory, 59(4):2178-2187, April 2013.

  102. E. Ekrem and S. Ulukus, Multi-Receiver Wiretap Channel with Public and Confidential Messages, IEEE Trans. on Information Theory, 59(4):2165-2177, April 2013.

  103. O. Ozel and S. Ulukus, Wiretap Channels: Implications of the More Capable Condition and Cyclic Shift Symmetry, IEEE Trans. on Information Theory, 59(4):2153-2164, April 2013.

  104. R. Bassily and S. Ulukus, Deaf Cooperation and Relay Selection Strategies for Secure Communication in Multiple Relay Networks, IEEE Trans. on Signal Processing, 61(6):1544-1554, March 2013.

  105. R. Bassily and S. Ulukus, Deaf Cooperation for Secrecy with Multiple Antennas at the Helper, IEEE Trans. on Information Forensics and Security, 7(6):1855-1863, December 2012.

  106. E. Ekrem and S. Ulukus, An Outer Bound for the Gaussian MIMO Broadcast Channel with Common and Private Messages, IEEE Trans. on Information Theory, 58(11):6766-6772, November 2012.

  107. O. Ozel and S. Ulukus, Achieving AWGN Capacity Under Stochastic Energy Harvesting, IEEE Trans. on Information Theory, 58(10):6471-6483, October 2012.

  108. E. Ekrem and S. Ulukus, Capacity-Equivocation Region of the Gaussian MIMO Wiretap Channel, IEEE Trans. on Information Theory, 58(9):5699-5710, September 2012.

  109. E. Ekrem and S. Ulukus, Degraded Compound Multi-Receiver Wiretap Channels, IEEE Trans. on Information Theory, 58(9):5681-5698, September 2012.

  110. E. Ekrem and S. Ulukus, Capacity Region of Gaussian MIMO Broadcast Channels with Common and Confidential Messages, IEEE Trans. on Information Theory, 58(9):5669-5680, September 2012.

  111. R. Bassily and S. Ulukus, Secure Communication in Multiple Relay Networks Through Decode-and-Forward Strategies, Journal of Communications and Networks, special issue on Physical Layer Security, 14(4):352-363, August 2012.

  112. O. Ozel, J. Yang and S. Ulukus, Optimal Broadcast Scheduling for an Energy Harvesting Rechargeable Transmitter with a Finite Capacity Battery, IEEE Trans. on Wireless Communications, 11(6):2193-2203, June 2012.

  113. J. Yang and S. Ulukus, Optimal Packet Scheduling in a Multiple Access Channel with Energy Harvesting Transmitters, Journal of Communications and Networks, special issue on Energy Harvesting in Wireless Networks, 14(2):140-150, April 2012.

  114. E. Ekrem and S. Ulukus, An Alternative Proof for the Capacity Region of the Degraded Gaussian MIMO Broadcast Channel, IEEE Trans. on Information Theory, 58(4):2427-2433, April 2012.

  115. R. Bassily and S. Ulukus, Ergodic Secret Alignment, IEEE Trans. on Information Theory, 58(3):1594-1611, March 2012.

  116. J. Yang, O. Ozel and S. Ulukus, Broadcasting with an Energy Harvesting Rechargeable Transmitter, IEEE Trans. on Wireless Communications, 11(2):571-583, February 2012.

  117. J. Yang and S. Ulukus, Optimal Packet Scheduling in an Energy Harvesting Communication System, IEEE Trans. on Communications, 60(1):220-230, January 2012.

  118. O. Ozel, K. Tutuncuoglu, J. Yang, S. Ulukus and A. Yener, Transmission with Energy Harvesting Nodes in Fading Wireless Channels: Optimal Policies, IEEE Jour. on Selected Areas in Communications, 29(8):1732-1743, September 2011.

  119. W. Kang and S. Ulukus, Capacity of a Class of Diamond Channels, IEEE Trans. on Information Theory, 57(8):4955-4960, August 2011.

  120. R. Tandon and S. Ulukus, Dependence Balance Based Outer Bounds for Gaussian Networks with Cooperation and Feedback, IEEE Trans. on Information Theory, 57(7):4063-4086, July 2011.

  121. J. Yang and S. Ulukus, Trading Rate for Balanced Queue Lengths for Network Delay Minimization, IEEE Jour. on Selected Areas in Communications, 29(5):988-996, May 2011.

  122. E. Ekrem and S. Ulukus, The Secrecy Capacity Region of the Gaussian MIMO Multi-Receiver Wiretap Channel, IEEE Trans. on Information Theory, 57(4):2083-2114, April 2011.

  123. E. Ekrem and S. Ulukus, Secrecy in Cooperative Relay Broadcast Channels, IEEE Trans. on Information Theory, 57(1):137-155, January 2011.

  124. W. Kang and S. Ulukus, A New Data Processing Inequality and Its Applications in Distributed Source and Channel Coding, IEEE Trans. on Information Theory, 57(1):56-69, January 2011.

  125. E. Ekrem and S. Ulukus, Secure Broadcasting Using Multiple Antennas, Journal of Communications and Networks, 12(5):411-432, October 2010.

  126. J. Yang and S. Ulukus, Delay-minimal Transmission for Average Power Constrained Multi-access Communications, IEEE Trans. on Wireless Communications, 9(9):2754-2767, September 2010.

  127. A. Soysal and S. Ulukus, Joint Channel Estimation and Resource Allocation for MIMO Systems-Part II: Multi-user and Numerical Analysis, IEEE Trans. on Wireless Communications, 9(2):632-640, February 2010.

  128. A. Soysal and S. Ulukus, Joint Channel Estimation and Resource Allocation for MIMO Systems-Part I: Single-user Analysis, IEEE Trans. on Wireless Communications, 9(2):624-631, February 2010.

  129. E. Ekrem and S. Ulukus, Secrecy Capacity of a Class of Broadcast Channels with an Eavesdropper, EURASIP Journal on Wireless Communications and Networking, Special Issue on Wireless Physical Layer Security, Volume 2009, Article ID 824235, 29 pages, 2009.

  130. R. Tandon and S. Ulukus, Outer Bounds for Multiple Access Channels with Feedback using Dependence Balance, IEEE Trans. on Information Theory, 55(10):4494-4507, October 2009.

  131. S. Shafiee and S. Ulukus, Mutual Information Games in Multi-user Channels with Correlated Jamming, IEEE Trans. on Information Theory, 55(10):4598-4607, October 2009.

  132. S. Shafiee, N. Liu and S. Ulukus, Towards the Secrecy Capacity of the Gaussian MIMO Wire-tap Channel: The 2-2-1 Channel, IEEE Trans. on Information Theory, 55(9):4033-4039, September 2009.

  133. A. Soysal and S. Ulukus, Optimality of Beamforming in Fading MIMO Multiple Access Channels, IEEE Trans. on Communications, 57(4):1171-1183, April 2009.

  134. N. Liu and S. Ulukus, The Capacity Region of a Class of Discrete Degraded Interference Channels, IEEE Trans. on Information Theory, 54(9):4372-4378, September 2008.

  135. N. Liu and S. Ulukus, Scaling Laws for Dense Gaussian Sensor Networks and the Order Optimality of Separation, IEEE Trans. on Information Theory, 53(10):3654-3676, October 2007.

  136. A. Soysal and S. Ulukus, Optimum Power Allocation for Single-User MIMO and Multi-User MIMO-MAC with Partial CSI, IEEE Jour. on Selected Areas in Communications, 25(7):1402-1412, September 2007.

  137. O. Kaya and S. Ulukus, Power Control for Fading Cooperative Multiple Access Channels, IEEE Trans. on Wireless Communications, 6(8):2915-2923, August 2007.

  138. O. Kaya and S. Ulukus, Achieving the Capacity Region Boundary of Fading CDMA Channels via Generalized Iterative Waterfilling, IEEE Trans. on Wireless Communications, 5(11):3215-3223, November 2006.

  139. N. Liu and S. Ulukus, Capacity Region and Optimum Power Control Strategies for Fading Gaussian Multiple Access Channels with Common Data, IEEE Trans. on Communications, 54(10):1815-1826, October 2006.

  140. J. Luo, S. Ulukus and A. Ephremides, Optimal Sequences and Sum Capacity of Symbol Asynchronous CDMA Systems, IEEE Trans. on Information Theory, 51(8):2760-2769, August 2005.

  141. J. Luo, S. Ulukus and A. Ephremides, Standard and Quasi-standard Stochastic Power Control Algorithms, IEEE Trans. on Information Theory, 51(7):2612-2624, July 2005.

  142. O. Kaya and S. Ulukus, Ergodic Sum Capacity Maximization for CDMA: Optimum Resource Allocation, IEEE Trans. on Information Theory, 51(5):1831-1836, May 2005.

  143. S. Ulukus and A. Yener, Iterative Transmitter and Receiver Optimization for CDMA Networks, IEEE Trans. on Wireless Communications, 3(6):1879-1884, November 2004.

  144. O. Kaya and S. Ulukus, Optimum Power Control for CDMA with Deterministic Sequences in Fading Channels, IEEE Trans. on Information Theory, 50(10):2449-2458, October 2004.

  145. S. Ulukus and R. D. Yates, User Capacity of Asynchronous CDMA Systems with Matched Filter Receivers and Optimum Signature Sequences, IEEE Trans. on Information Theory, 50(5):903-909, May 2004.

  146. A. Yener, R. D. Yates and S. Ulukus, Combined Multiuser Detection and Beamforming for CDMA Systems: Filter Structures, IEEE Trans. on Vehicular Technology, 51(5):1087-1095, September 2002.

  147. C. Rose, S. Ulukus and R. D. Yates, Wireless Systems and Interference Avoidance, IEEE Trans. on Wireless Communications, 1(3):415-428, July 2002. (2003 IEEE Marconi Prize Paper Award in Wireless Communications)

  148. A. Yener, R. D. Yates and S. Ulukus, CDMA Multiuser Detection: A Nonlinear Programming Approach, IEEE Trans. on Communications, 50(6):1016-1024, June 2002.

  149. A. Yener, R. D. Yates and S. Ulukus, Interference Management for CDMA Systems through Power Control, Multiuser Detection and Beamforming, IEEE Trans. on Communications, 49(7):1227-1239, July 2001.

  150. S. Ulukus and R. D. Yates, Iterative Construction of Optimum Signature Sequence Sets in Synchronous CDMA Systems, IEEE Trans. on Information Theory, 47(5):1989-1998, July 2001.

  151. S. Ulukus and R. D. Yates, Adaptive Power Control and MMSE Interference Suppression, ACM Wireless Networks, 4(6):489-496, November 1998.

  152. S. Ulukus and R. D. Yates, A Blind Adaptive Decorrelating Detector for CDMA Systems, IEEE Jour. on Selected Areas in Communications, 16(8):1530-1541, October 1998.

  153. S. Ulukus and R. D. Yates, Stochastic Power Control for Cellular Radio Systems, IEEE Trans. on Communications, 46(6):784-798, June 1998.

  154. S. Ulukus and R. D. Yates, Optimum Multiuser Detection is Tractable for Synchronous CDMA Systems Using M-sequences, IEEE Communication Letters, 2(4):89-91, April 1998.

  155. A. E. Cetin, O. N. Gerek and S. Ulukus, Block Wavelet Transforms for Image Coding, IEEE Trans. Circuits and Systems for Video Technology, 3(6):433-435, December 1993.