Massive MIMO Codebook Design Using Gaussian Mixture Model Based Clustering. - Markkandan S; S. Sivasubramanian; Jaison Mulerikkal; Nazeer Shaik; Beulah Jackson; Lakshmi Naryanan (Intell. Autom. Soft Comput., 2022)

Studies on Underwater Image Processing Using Artificial Intelligence Technologies. - Sugunapriya A; Markkandan S (IEEE Access, 2025)

Fast and Scalable Intelligent Reflecting Surface Beamforming Using Hybrid Learning Approaches. - S. Sivasankar; Markkandan S (IEEE Access, 2025)

Hybrid Optimization for IRS-Aided Secure Communication: A Gradient Projection and Dynamic Security Framework. - S. Sivasankar; Markkandan S (Trans. Emerg. Telecommun. Technol., 2025)