Publications

Journal

  1. S. S. Thoota, P. Babu, and C. R. Murthy, Codebook Based Precoding and Power Allocation for MU-MIMO Systems for Sum Rate Maximization, IEEE Transactions on Communications, vol. 67, no. 12, pp. 8290-8302, Dec. 2019. pdf
  2. D. Gündüz, P. de Kerret, N. D. Sidiropoulos, D. Gesbert, C. R. Murthy, and M. van der Schaar, Machine Learning in the Air, IEEE Journal on Selected Areas in Communications, vol. 37, no. 10, pp. 2184-2199, Oct. 2019. pdf
  3. R. Chopra, C. R. Murthy, and R. Annavajjala, Physical Layer Security in Wireless Sensor Networks Using Distributed Co-Phasing, IEEE Transactions on Information Forensics and Security, vol. 14, no. 10, pp. 2662-2675, Oct. 2019. pdf
  4. G. Joseph and C. R. Murthy, Measurement Bounds for Observability of Linear Dynamical Systems under Sparsity Constraints, IEEE Transactions on Signal Processing, vol. 67, no. 8, pp. 1992-2006, Apr. 15, 2019. pdf
  5. M. Sharma, C. R. Murthy, and R. Vaze, Asymptotically Optimal Uncoordinated Power Control Policies for Energy Harvesting Multiple Access Channels with Decoding Costs, IEEE Transactions on Communications, vol. 67, no. 3, pp. 2420-2435, Mar. 2019. pdf
  6. R. Chopra, C. R. Murthy, H. A. Suraweera, E. G. Larsson, Analysis of Non-Orthogonal Training in Massive MIMO under Channel Aging with SIC Receivers, IEEE Signal Processing Letters, vol. 26, no. 2, pp. 282-286, Feb. 2019. pdf
  7. R. Chopra, C. R. Murthy, and G. Rangarajan, Statistical Tests for Detecting Granger Causality, IEEE Transactions on Signal Processing, vol. 66, no. 22, Nov. 15, 2018. pdf
  8. A. Sharma and C. R. Murthy, On Finding a Subset of Non-Defective Items from a Large Population, IEEE Transactions on Signal Processing, vol. 66, no. 21, pp. 5762-5775, Nov. 01. 2018. pdf
  9. Arunkumar K. P. and C. R. Murthy, Iterative Sparse Channel Estimation and Data Detection for Underwater Acoustic Communications Using Partial Interval Demodulation, IEEE Transactions on Signal Processing, vol. 66, no. 19, pp. 5041-5055, Oct. 01, 2018. pdf. Click here for a bare-bones version of the code that demonstrate the main idea of the paper.
  10. S. Khanna and C. R. Murthy, Sparse Recovery from Multiple Measurement Vectors Using Exponentiated Gradient Updates, IEEE Signal Processing Letters, vol. 25, no. 10, pp. 1485-1489, Oct. 2018. pdf
  11. G. Joseph and C. R. Murthy, On the Observability of a Linear System with a Sparse Initial State, IEEE Signal Processing Letters, vol. 25, no. 7, pp. 994-998, Jul. 2018. pdf
  12. M. Sharma and C. R. Murthy, Distributed Power Control for Multi-hop Energy Harvesting Links with Retransmission, IEEE Transactions on Wireless Communications, vol. 17, no. 6, pp. 4064-4078, Jun. 2018. pdf Matlab code
  13. R. Chopra, C. R. Murthy, H. A. Suraweera and E. G. Larsson, Performance Analysis of FDD Massive MIMO Systems Under Channel Aging, IEEE Transactions on Wireless Communications, vol. 17, no. 2, pp. 1094-1108, Feb. 2018. pdf
  14. S. Khanna and C. R. Murthy, On the Restricted Isometry of the Columnwise Khatri-Rao Product, IEEE Transactions on Signal Processing, vol. 61, no. 5, pp. 1170-1183, Mar. 1, 2018. pdf ALERT: In this paper, Proposition 15 is incorrect, due to which the proofs of Theorems 2 and 4 do not hold as stated. The errata can be found here. Thanks to Piya Pal, UC San Diego, for finding this error.
  15. A.Sharma and C. R. Murthy, Computationally Tractable Algorithms for Finding a Subset of Non-defective Items from a Large Population, IEEE Transactions on Information Theory, vol. 63, no. 11, pp. 7149 - 7165, Nov. 2017. pdf
  16. R. Chopra, R. Annavajjala, and C. R. Murthy, Distributed Co-Phasing with Autonomous Constellation Selection, IEEE Transactions on Signal Processing, vol. 65, no. 21, pp. 5798-5811, Nov. 2017. pdf
  17. G. Joseph and C. R. Murthy, A Non-iterative Online Bayesian Algorithm for the Recovery of Temporally Correlated Sparse Vectors, IEEE Transactions on Signal Processing, vol. 65, no. 20, pp. 5510-5525, Oct. 2017. pdf, Matlab Code
  18. S. Khanna and C. R. Murthy, Communication Efficient Decentralized Sparse Bayesian Learning of Joint Sparse Signals, IEEE Transactions on Signal and Information Processing over Networks, vol. 3, no. 3, pp. 617-630, Sept. 2017. pdf
  19. Mohit K. Sharma and C. R. Murthy, On the Design of Dual Energy Harvesting Communication Links With Retransmission, IEEE Transactions on Wireless Communications, vol. 16, no. 6, pp. 4079-4093, Jun. 2017. pdf
  20. A. K. Dutta, K. V. S. Hari, C. R. Murthy, N. B. Mehta, and L. Hanzo, Minimum Error Probability MIMO-Aided Relaying: Multi-Hop, Parallel and Cognitive Designs, IEEE Transactions on Vehicular Technology, vol. 66, no. 6, pp. 5435-5440, Jun. 2017. pdf
  21. P. Mohapatra, C. R. Murthy, and J. Lee, On the Secrecy Capacity Region of the 2-user Symmetric Z Interference Channel with Unidirectional Transmitter Cooperation, IEEE Transactions on Information Forensics and Security, vol. 12, no. 3, pp. 572-587, Mar. 2017. pdf
  22. R. Ramu Naidu and C. R. Murthy, Construction of Binary Sensing Matrices Using Extremal Set Theory, IEEE Signal Processing Letters, vol. 24, no. 2, pp. 211-215, Feb. 2017. pdf
  23. R. Chopra, C. R. Murthy, and R. Annavajjala, Multi-Stream Distributed Co-Phasing, IEEE Transactions on Signal Processing, vol. 65, no. 4, pp. 1042-1057, Feb. 2017. pdf
  24. R. Vaze and C. R. Murthy, Multiple Transmitter Localization and Whitespace Identification using Randomly Deployed Binary Sensors, IEEE Transactions on Cognitive Communications and Networking, vol. 2, no. 4, pp. 1-12, Dec. 2016. pdf
  25. M. Sharma and C. R. Murthy, Packet Drop Probability Analysis of Dual Energy Harvesting Links With Retransmission, IEEE Journal on Selected Areas - Series on Green Communications and Networking, vol. 34, no. 12, pp. 3646-3660, Dec. 2016. pdf
  26. R. Chopra, C. R. Murthy, and H. A. Suraweera, On the Throughput of Large MIMO Beamforming Systems with Channel Aging, IEEE Signal Processing Letters, vol. 23, no. 11, pp. 1523-1527, Nov. 2016. pdf
  27. P. Mohapatra and C. R. Murthy, On the Capacity of the 2-User Interference Channel with Transmitter Cooperation and Secrecy Constraints, IEEE Transactions on Inform. Theory, vol. 62, no. 10, pp. 5664 - 5689, Oct. 2016. ArXiv, pdf
  28. Venugopalakrishna Y. R. and C. R. Murthy, Performance Analysis of Co-phased Combining for Achieving Binary Consensus over Fading Wireless Channels with Imperfect CSI, IEEE Transactions on Sig. Proc., vol. 64, no. 12, pp. 3262 - 3273, Jun. 2016.pdf
  29. M. S. Veedu, C. R. Murthy, and L. Hanzo, Single-RF Spatial Modulation Relying on Finite-Rate Phase-Only Feedback: Design and Analysis, IEEE Transactions on Veh. Technol., vol. 65, no. 4, pp. 2016 - 2025, Apr. 2016. pdf
  30. S. Khanna and C. R. Murthy, Decentralized Joint-Sparse Signal Recovery: A Sparse Bayesian Learning Approach, IEEE Transactions on Signal and Information Processing over Networks, vol. 3, no. 1, pp. 29-45, Mar. 2016. pdf
  31. S. Gurugopinath, R. Akula, C. R. Murthy, R. Prasanna, and B. Amruthur, Design and Implementation of Spectrum Sensing for Cognitive Radios with a Frequency-Hopping Primary System, Elsevier Physical Communication, vol. 17, pp. 172 - 184, Dec. 2015. pdf
  32. S. Gurugopinath, C. R. Murthy, and V. Sharma, Error Exponent Analysis of Energy-Based Bayesian Decentralized Spectrum Sensing Under Fading, Elsevier Physical Communication, vol. 17, pp. 94 - 106, Dec. 2015. pdf
  33. Sinchu P., R. G. Stephen, C. R. Murthy, and M. Coupechoux, Training-Based Antenna Selection for PER Minimization: A POMDP Approach, IEEE Transactions on Commun., vol. 63, no. 9, pp. 3247 - 3260, Sep. 2015. pdf
  34. R. Prasad, C. R. Murthy, and B. D. Rao, Joint Channel Estimation and Data Detection in MIMO-OFDM Systems: A Sparse Bayesian Learning Approach, IEEE Transactions on Sig. Proc., vol. 63, no. 20, pp. 5369 - 5382, Oct. 2015. pdf
  35. A. Manesh, C. R. Murthy, and R. Annavajjala, Physical Layer Data Fusion via Distributed Co-Phasing with General Signal Constellations, IEEE Transactions on Sig. Proc., vol. 63, no. 17, pp. 4660 - 4672, May 2015. pdf
  36. T. Ganesan and C. R. Murthy, Novel Transmit Precoding Methods for Rayleigh Fading Multiuser TDD-MIMO Systems with CSIT and no CSIR, IEEE Transactions on Veh. Technol., vol. 64, no. 3, pp. 973 - 984, Mar. 2015. pdf
  37. A. Sharma and C. R. Murthy, Group Testing Based Spectrum Hole Search for Cognitive Radios, IEEE Transactions on Veh. Technology, vol. 63, no. 8, pp. 3794 - 3805, Oct. 2014. pdf
  38. R. Prasad, C. R. Murthy, and B. D. Rao, Joint Approximately Sparse Channel Estimation and Data Detection in OFDM Systems using Sparse Bayesian Learning, IEEE Transactions on Sig. Proc., vol. 62, no. 14, pp. 3591 - 3603, Jul. 2014. pdf
  39. T. Ganesan and C. R. Murthy, Linear Filtering Methods for Fixed Rate Quantization with Noisy Symmetric Error Channels, IET Signal Processing, vol. 7, no. 9, pp. 888-896, Dec. 2013. here
  40. B. N. Bharath and C. R. Murthy, Power-Controlled Reverse Channel Training in a Multiuser TDD-MIMO Spatial Multiplexing System with CSIR, IEEE Transactions on Veh. Technology, vol. 62, no. 9, pp. 4345 - 4356, Nov. 2013. pdf
  41. J. Chandrasekhar and C. R. Murthy, Noncoherent Integration for Signal Detection: Analysis Under Model Uncertainties, IEEE Transactions on Aerospace and Electronic Systems, vol. 49, no. 4, pp. 2413-2430, Oct. 2013. pdf
  42. A. Aprem, C. R. Murthy, and N. B. Mehta, Transmit Power Control Policies for Energy Harvesting Sensors with Retransmissions, IEEE Journal of Selected Topics in Signal Proc., special issue on Learning-Based Decision Making in Dynamic Systems under Uncertainty, vol. 7, pp. 895–906, Oct. 2013. pdf
  43. R. S. George, C. R. Murthy, and M. Coupechoux, A Markov Decision Theoretic Approach to Pilot Allocation and Receive Antenna Selection, IEEE Transactions on Wireless Commun., vol. 12, no. 8, pp. 3813 - 3823, Aug. 2013. here
  44. S. Kumar, N. Shende, C. R. Murthy, and A. Ayyagari, Throughput Analysis of Primary and Secondary Networks in a Shared IEEE 802.11 System, IEEE Transactions on Wireless Commun., vol. 12, no. 3, pp. 1006-1017, Mar. 2013. arXiv
  45. R. Prasad and C. R. Murthy, Cramér-Rao–Type Bounds for Sparse Bayesian Learning, IEEE Transactions on Sig. Proc., vol. 61, no. 3, pp. 622-632, Mar. 2013. pdf
  46. K. G. Nagananda, P. Mohapatra, C. R. Murthy, and S. Kishore, Multiuser Cognitive Radio Networks: An Information-Theoretic Perspective, International Journal of Advances in Engineering Sciences and Applied Mathematics, An IIT Madras Journal from Springer, vol. 5, no. 1, pp. 43-65, Mar. 2013. Here.
  47. P. Mohapatra and C. R. Murthy, Inner Bound on the GDOF of the K-User MIMO Gaussian Symmetric Interference Channel, IEEE Transactions on Commun., vol. 61, no. 1, pp. 187-196, Jan. 2013. arXiv
  48. P. Mohapatra and C. R. Murthy, Outer Bounds on the Sum Rate of the K-User MIMO Gaussian Interference Channel, IEEE Transactions on Commun., vol. 61, no. 1, pp. 176-186, Jan. 2013. arXiv
  49. B. N. Bharath and C. R. Murthy, Channel Training Signal Design for Reciprocal Multiple Antenna Systems with Beamforming, IEEE Transactions on Veh. Technology, vol. 62, no. 1, pp. 140 - 151, Jan. 2013. pdf
  50. B. N. Bharath and C. R. Murthy, Power Controlled Reverse Channel Training Achieves an Infinite Diversity Order in a TDD-SIMO System with Perfect CSIR, IEEE Communications Letters, vol. 16, no. 11, pp. 1800-1803, Nov. 2012.
  51. Venugopalakrishna Y. R., C. R. Murthy, and D. N. Dutt, Multiple Transmitter Localization and Communication Footprint Identification using Energy Measurements, Elsevier Physical Communication, Special Issue on Cognitive Radio, Sep. 2012. here.
  52. B. N. Bharath and C. R. Murthy, On the DMT of TDD-SIMO Systems with Channel-Dependent Reverse Channel Training, IEEE Transactions on Commun., vol. 60, no. 11, pp. 3332-3341, Nov. 2012.
  53. S. Reddy and C. R. Murthy, Dual-Stage Power Management Algorithms for Energy Harvesting Sensors, IEEE Transactions on Wireless Commun., vol. 11, no. 4, pp. 1434-1465, Apr. 2012.
  54. T. Ganesan and C. R. Murthy, Trellis Coded Block Codes: Design and Applications, Journal of Communications, Academy Publishers, vol. 7, no. 1, pp. 73-85, Jan. 2012. Available here.
  55. P. Mohapatra, K. E. Nissar, and C. R. Murthy, Interference Alignment Algorithms for the K-User Constant MIMO Interference Channel, IEEE Transactions on Sig. Proc., vol. 59, no. 11, pp. 5499 - 5508, Nov. 2011.
  56. C. R. Murthy, E. R. Duni, and B. D. Rao, High-Rate Vector Quantization for Noisy Channels With Applications to Wideband Speech Spectrum Compression, IEEE Transactions on Sig. Proc., vol. 59, no. 11, pp. 5390 - 5403, Nov. 2011.
  57. K. V. Krishna Chaythanya, R. Annavajjala, and C. R. Murthy, Comparative Analysis of Pilot-Assisted Distributed Co-Phasing Approaches in Wireless Sensor Networks, IEEE Transactions on Sig. Proc., vol. 59, no. 8, pp. 3722 - 3737, Aug. 2011.
  58. C. R. Murthy, Power Management and Data Rate Maximization in Wireless Energy Harvesting Sensors, International Journal of Wireless Information Networks, DOI: 10.1007/s10776-009-0104-2, July 2009.
  59. C. R. Murthy, J. Zheng and B. D. Rao, Performance of quantized equal gain transmission with noisy feedback channels, IEEE Transactions on Sig. Proc., vol. 56, no. 6, pp. 2451-2460, June 2008.
  60. C. R. Murthy and B. D. Rao, Quantization methods for equal gain transmission with finite rate feedback, IEEE Transactions on Sig. Proc., vol. 55, pp. 233-245, Jan. 2007.
  61. C. R. Murthy, A. K. Jagannatham and B. D. Rao, Training-Based and Semiblind Channel Estimation for MIMO Systems With Maximum Ratio Transmission, IEEE Transactions on Sig. Proc., vol. 54, pp. 2546-2558, July 2006.