1:25 PM on Monday, December 10, 2012
Location: 261 Durham
Dr. Sumit Roy, from the Fundamentals of Networking Lab at the University of Washington, will be the speaker.
Dr. Roy’s talk will begin with a brief overview of wireless networking research at FUNLAB, U. Washington and subsequently describe in greater detail the effort centered around cognitive/software defined networking themes. The evolution of cognitive (secondary) networks to enable more efficient spectrum usage will need to rely on fast and accurate spectrum sensing/mapping, supported by a suitable architecture for data integration and model refinement. In the first part of the talk, fundamental aspects of the wide-area RF mapping problem as a grand challenge will be highlighted; some recent work at UW that underpins sub-system level trade-offs (e.g. between scan latency and channel status estimation accuracy) will be described. Next, the role of centralized databases in RF map creation for enabling primary-to-secondary and secondary-to-secondary coexistence is explored within a hybrid (distributed sensing + centralized resource allocation) system. Ongoing work regarding a fundamental question “How much white space capacity is there” will be described.
Dr. Sumit Roy (Fellow, IEEE) received the B. Tech. degree from the Indian Institute of Technology (Kanpur) in 1983, and the M.S. and Ph.D. degrees in Electrical Engineering from the University of California (Santa Barbara) in 1985 and 1988 respectively, as well as an M.A. in Statistics and Applied Probability in 1988. Presently he is Professor of Electrical Engineering, Univ. of Washington where his research interests include analysis/design of wireless communication and sensor network systems. His recent research emphasis includes multi-standard wireless inter-networking and cognitive radios, vehicular and sensor networking involving RFID technology, and networking for the emerging Smart Grid. He spent 2001-2003 on academic leave at Intel Wireless Technology Lab as a Senior Researcher engaged in systems architecture and standards development for ultra-wideband systems (Wireless PANs) and next generation high-speed wireless LANs. He served as Isaac Walton Fellow at University College Dublin from January-June 2008, and as a Royal Acad. Engineering Distinguished Visitor for summer 2011. His activities for the IEEE Communications Society (ComSoc) include membership of several technical and conference program committees, notably the Technical Committee on Cognitive Networks. He has served as Associate Editor for IEEE Trans. Communications, Wireless Communications, and Smart Grids, and currently serves on the Editorial Board for IEEE Intelligent Transportation Systems and IEEE Trans. Communications.