Published Journal Articles
Published Journal Articles
G. Muthukrishnan, S. Shanmugam, and S. Kalyani, “Source Enumeration Using the Distribution of Angles: A Parameter-Free Approach for Grant-Free Access in Massive MIMO Uplink,” IEEE Wireless Communications Letters, vol. 15, pp. 1430-1434, 2026. DOI: 10.1109/LWC.2026.3653264, arXiv: 2409.06563.
L. Jayalal, G. Muthukrishnan, and S. Kalyani, “Tuning-Free Online Robust Principal Component Analysis through Im- plicit Regularization,” IEEE Signal Processing Letters, vol. 32, pp. 3360-3364, 2025. DOI: 10.1109/LSP.2025.3599784, arXiv: 2409.07275.
G. Muthukrishnan, P. K. Mudi, S. Kalyani, K. R. Tripathi, and R. K. Choudhary, “Improved frequency estimation for radio occultation through chirp Z-transform and adaptive slicing,” RAS Techniques and Instruments, vol. 4, pp. 1-8, 2025. DOI: 10.1093/rasti/rzaf026.
G. Muthukrishnan and S. Kalyani, “Differential Privacy With Higher Utility by Exploiting Coordinate-Wise Disparity: Laplace Mechanism Can Beat Gaussian in High Dimensions,” IEEE Transactions on Information Forensics and Security, vol. 20, pp. 2836-2851, 2025. DOI: 10.1109/TIFS.2025.3536277, arXiv: 2302.03511.
G. Muthukrishnan and S. Kalyani, “Grafting Laplace and Gaussian Distributions: A New Noise Mechanism for Differential Privacy,” IEEE Transactions on Information Forensics and Security, vol. 18, pp. 5359-5374, 2023. DOI: 10.1109/TIFS.2023.3306159, arXiv: 2212.09657.
V. Menon, G. Muthukrishnan, and S. Kalyani, “Subspace Clustering Without Knowing the Number of Clusters: A Parameter Free Approach,” IEEE Transactions on Signal Processing, vol. 68, pp. 5047-5062, 2020. DOI: 10.1109/TSP.2020.3018665, arXiv: 1909.04406.
G. Muthukrishnan and A. Tandon, “On the Optimal Number of Grids for Differentially Private Non-Interactive K-Means Clustering,” in Proceedings of the 2026 International Conference on Signal Processing and Communications (SPCOM 2026). IEEE, 2026, pp. 1-5. DOI: 10.1109/SPCOM71105.2026.11622906, arXiv: 2603.26963.
L. Jayalal, G. Muthukrishnan, and S. Kalyani, “Tuning-Free Online Robust Principal Component Analysis through Implicit Regularization,” in the 2026 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2026). IEEE, 2026. arXiv: 2409.07275.
G. Muthukrishnan, S. Banerjee, S. Kalyani, and R. K. Choudhary, “Use of chirp Z-transform and adaptive slicing in the radio occultation technique for improved estimation of the Frequency residuals,” in the Seventh Indian Planetary Science Conference (IPSC 2026), 2026.
S. Sowmya, G. Muthukrishnan, and K. Giridhar, “Low-Complexity Linear Decoupling of Users for Uplink Massive MU-MIMO Detection,” in Proceedings of the 2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring). IEEE, 2024, pp. 1-6. DOI: 10.1109/VTC2024-Spring62846.2024.10683180, arXiv: 2403.03271.
G. Muthukrishnan, S. Sruti, and K. Giridhar, “Using DCFT for Multi-Target Detection in Distributed Radar Systems with Several Transmitters,” in Proceedings of the 2024 IEEE Radar Conference (RadarConf24). IEEE, 2024, pp. 1-6. DOI: 10.1109/RadarConf2458775.2024.10548844, arXiv: 2401.00843.
A. S. Kumar, S. Shekhar, G. Muthukrishnan, M. Srinivasan, and S. Kalyani, “Integrating OTFS in Airplane-Aided Next-Generation Networking,” 2026. arXiv: 2601.15166.
R. A. Gowtham, G. Muthukrishnan, T. Tholeti, and S. Kalyani, “Introducing the Huber mechanism for differentially private low-rank matrix completion,” 2022. arXiv: 2206.07910.