IEEE Gainesville Section presents: Cross-Layering In Wireless Networks Dr. Anthony Ephremides,Cynthia Kim Eminent Professor of Information Technology, Department of Electrical and Computer Engineering, University of Maryland Monday, Oct. 29, 2007 2:00 pm 234 Larsen Hall (Center Drive, University of Florida) Co-sponsored by the Computer Engineering Division of ECE Department of Electrical and Computer Engineering College of Engineering Abstract: It has become clear that there are strong interdependencies between the network functionalities of the protocols that reside at different layers in the traditional network stack architecture. Exploiting these interdependencies leads demonstrably to improved performance. This is especially true in wireless networks. In this talk we display examples of how these interrelationships can be utilized for crosslayer design. The examples range from sensor network applications to ad hoc network media access control and cover diverse layers from under the physical layer (i.e. the hardware level) to the application layer. The most notable innovation in our examples is the focus on how the physical layer can be exploited. Our investigations and design considerations point to important conclusions for the direction future research should follow in this field. Biography: Anthony Ephremides received his B.S. degree from the National Technical University of Athens in 1967, and his M.S. and Ph.D. degrees from Princeton University, all in electrical engineering. He has been at the University of Maryland since 1971, and currently holds a joint appointment as a professor in the Electrical Engineering Department and the Institute of Systems Research. He is co-founder of the NASA Center for Commercial Development of Space on Hybrid and Satellite Communications Networks established in 1991 at Maryland as an off-shoot of the ISR. He has been the President of the Information Theory Society of the IEEE (1987), and served on the Board of the IEEE (1989 and 1990). Ephremides' interests are in the areas of communication theory, communication systems and networks, queueing systems, signal processing, and satellite communications. If you have any questions, please contact Dr. Oliver Wu at (352) 392-4954 or wu@ece.ufl.edu.