Prof. Varanasi's recent research has been on modern as well as long-standing problems in information theory and network coding of establishing information-theoretic limits or fine approximations thereof of broadcast and interference channels and broadcast networks. He has also been active in the areas of coded caching, communication with message cognition or side information at the receivers including information theoretically optimal coded caching over the noisy broadcast channel, noiseless distributed servers, and device-to-device caching. Different topologies and settings are studied including cellular, interference and multihop (mesh, wimax) networks with general messaging, multiple-antenna terminals, feedback, relaying and channel uncertainty models. Communication and signal processing algorithms and coding techniques for such networks are of interest.
keywords
Information Science and Engineering, theoretical foundations of processing (communicating/compressing/storing) data over networks and extracting information from data, including information theory, theory of communication, wireless communications, coding and system optimization, signal processing and statistical/machine learning theory and their applications
