Poor - Plenary Lecture

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Competition and Collaboration in Wireless Networks

poorProfessor H. Vincent Poor
Princeton University


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A major contemporary issue in the design and deployment of wireless networks is the dramatic increase in demand for new capacity and higher performance. The development of these capabilities is limited severely by the scarcity of the two principal resources in wireless networks, namely energy and bandwidth. Much of the capacity growth of the past two decades has been enabled by major advances in the wireless physical layer. However, in recent years, attention has turned increasingly to the higher network layers to examine interactions among nodes that can lead to even greater efficiencies in the use of wireless resources. This talk examines two types of such interactions: competition among nodes in multiple-access communication networks, and collaboration among nodes in wireless sensor networks. In the first context, the network is viewed as an economic system, in which terminals behave as agents competing for radio resources to optimize the energy efficiency with which they transmit messages. A game theoretic formalism is used to analyze the effects of various design choices and quality-of-service constraints on energy efficiency. In the second context, collaborative techniques for optimizing the use of radio resources in sensor networks are considered. Here, the focus is primarily on distributed inference, in which distinctive features of wireless sensor networks can be exploited through collaboration among nodes to effect a tradeoff between inferential accuracy and energy consumption.


Wednesday, June 27


H. Vincent Poor is the Michael Henry Strater University Professor of Electrical Engineering and Dean of the School of Engineering and Applied Science at Princeton University. His primary research interests are in the area of wireless networks and related fields. Among his publications in these areas is the recent book, MIMO Wireless Communications (Cambridge, 2007), co-authored with Ezio Biglieri, et al.

Dr. Poor is a member of the U. S. National Academy of Engineering, a Fellow of the American Academy of Arts & Sciences, and a former Guggenheim Fellow. He is also a Fellow of the IEEE, the Institute of Mathematical Statistics, and other scientific and technical organizations. He is a former President of the IEEE Information Theory Society, and is the current Editor-in-Chief of the IEEE Transactions on Information Theory. Recent recognition of his work includes the 2005 IEEE Education Medal and the 2007 IEEE Marconi Prize Paper Award.

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