The optimality of source-channel separation for communication with a fidelity criterion was proved by Shannon in the point-to-point setting. This talk generalizes this result in two directions: 1. From the point-to-point setting to the unicast multi-user setting. Unicast means that all sources which need to be communicated between various users are independent of each other 2. Shannon's result required the knowledge of the channel as a transition probability, whereas we allow the medium to belong to a family. For this reason, the result is said to be universal over the medium of communication Further, the medium model is general. An important assumption is that random codes are permitted. This is joint work with Prof. Sanjoy Mitter from MIT and partially joint work with Prof. Anant Sahai from UCBerkeley. If anyone wants to check out the results before-hand, please look at Part I and Part II in the paper, ``A universal, operational theory of unicast, multi-user communication with fidelity criteria,''
Mukul Agarwal got his B. Tech & M. Tech degrees from IIT, Bombay and his PhD from MIT.