Feedback in Wireless Networks: Recent Results & Discoveries

H. Vincent Poor

School of Engineering and Applied Science
Princeton University
C-230 Engineering Quadrangle, Olden Street
Princeton, NJ 08544

Abstract:

Although Shannon’s work showed that feedback does not increase capacity in point-to-point communications, it is known to be quite useful in multi-terminal systems. Notably, feedback has long played a major role in the development of wireless networks, from its earliest and simplest uses in protocols such as Aloha, to its more sophisticated uses in advanced multiple-antenna systems. Recent years have seen a considerable research effort in this area, both on the practical uses of feedback and on the fundamental, and sometimes surprising, properties that it can impart to networks. This talk will review some of the latter developments, notably as they relate the capacities of interference and MIMO broadcast channels.

Biography:

H. Vincent Poor is the Michael Henry Strater University Professor at Princeton University, where he is also the Dean of Engineering and Applied Science. His research interests are primarily in the areas of information theory, statistical signal processing and stochastic analysis, and their applications in various fields, including wireless communications, social networks and smart grid. Dr. Poor is a Fellow of the IEEE, and is a member of the US National Academy of Engineering, the US National Academy of Sciences, the Royal Academy of Engineering of the UK, and the Royal Society of Edinburgh. Recent recognition of his work includes the 2011 IEEE Eric E. Sumner Award, the 2011 IEEE Information Theory Paper Award, a Royal Academy Distinguished Visiting Fellowship (2012), and honorary doctorates from several universities in Europe and Asia. He is a former President of the IEEE Information Theory Society and Editor-in-Chief of the IEEE Transactions on Information Theory.