I am interested in theoretical and practical aspects related to wireless networks. Primarily my interests are in the PHY and MAC layer aspects of these networks, although occasionally I dabble at the higher layers as well. Current focus areas include (not limited to) the following:
- mmWave (5G) wireless networks: Specific problems of interest include – channel estimation, beam acquisition and tracking and hybrid pre-coding and design of directional MAC protocols (part of this research is via industrial consultancy and in collaboration with Dr. Ramesh Annavajjala, Affiliate Research Associate Professor at Northeastern University, Boston, MA, USA).
- Wireless Sensor Networks: Specific problems of interest include – target tracking and efficient data gathering/forwarding schemes.
- Cognitive Radio (CR) Networks: Specific problems of interest include – selection of secondary users for spectrum sensing and aspects related to quickest spectrum sensing.
- Relay Based Networks: Specific problems of interest include – PHY and MAC layer network coding for throughput enhancement.
Tools from Information theory, Statistical Signal Processing, Non-linear Optimization and Markov Decision Processes are used for theoretical analysis of the above mentioned networks.