My research interests are broadly in the areas of digital signal processing, information theory, estimation theory, and their applications in the optimization of MIMO wireless communication systems. Some of the projects I have worked on in the past are:

• Transmit optimization/precoding in MIMO systems
• CSI feedback schemes in MISO/MIMO systems
• MIMO (semi-blind) channel estimation techniques
• Channel feedback for OFDM
• Tracking time varying channels in feedback based systems
• Effect of estimation errors, feedback delay and channel errors on communication systems
• Robust channel estimation in time division duplex (TDD) systems

Currently, I am interested in problems in:

• Source coding and joint source-channel coding
• MIMO/OFDM channel estimation
• Cognitive radio
• Energy harvesting based communications
• Scheduling and resource allocation
• Compressive sensing and sparse Bayesian learning
• Interference management

You can find more information at the lab web-site SPC Lab or on the publications page.

1. Arunkumar K. P. and C. R. Murthy, Soft Symbol Decoding in Sweep-Spread-Carrier Underwater Acoustic Communications: A Novel Variational Bayesian Algorithm and its Analysis, Accepted, IEEE Transactions on Signal Processing, Mar. 2020. pdf
2. R. V. Bhat, M. Motani, C. R. Murthy, and R. Vaze, Energy Harvesting Communications with Batteries having Cycle Constraints, IEEE Transactions on Green Communications and Networking, vol. 4, no. 1, pp. 263-276, Mar. 2020. pdf
3. R. Ramu Naidu and C. R. Murthy, Construction of Unimodular Tight Frames Using Majorization-Minimization for Compressed Sensing, Accepted, Elsevier Signal Processing, Jan. 2020. pdf
4. G. Joseph and C. R. Murthy, On the Convergence of a Bayesian Algorithm for Joint Dictionary Learning and Sparse Recovery, IEEE Transactions on Signal Processing, vol. 68, no. 1, pp. 343-358, Dec. 2020. pdf. See here for some additional supplemental material, and here for the code. Also see Wenwu Wang's website for SimCo code.