D. Raychaudhuri, WINLAB, Rutgers University

The talk will attempt to identify some of the important research challenges in the wireless field.  The discussion will be organized into three categories: radio technology, wireless systems and networking, with emphasis on the last two topics.  On radio technology, the fundamental issue of "putting radio modems on Moore's law" is briefly considered, leading to a short list of research objectives.  Next, wireless systems are examined from the perspective of scaling system capacity to achieve ubiquitous broadband services. The relative roles of cellular 3G/4G, WLAN and ad-hoc networks are discussed, and related systems research topics such as interference avoidance, sensor network dynamics and spectrum efficiency are identified.  Research topics on wireless networks and protocols are considered next, including "4G" network protocols ("beyond mobile IP"), open issues in ad-hoc/sensor networking, security in ad-hoc scenarios, and new transport and service interfaces for the mobile Internet.
 

Biography:

Dipankar Raychaudhuri is currently Professor, Electrical & Computer Engineering Department and Director, WINLAB (Wireless Information Network Lab) at Rutgers University. As WINLAB Director, he is responsible for a cooperative industry-university research center with focus on wireless technology, including ongoing research programs on wireless devices & system-on-chip, modem technology, radio resource management, wireless networks and mobile computing.  He has previously held progressively responsible corporate R&D positions in the telecom/networking area including: Chief Scientist, Iospan Wireless (2000-01), Assistant General Manager & Dept Head-Systems Architecture, NEC USA C&C Research Laboratories (1993-99) and Head, Broadband Communications Research, Sarnoff Corp (1990-92).  During the period 1995-1999, his research group at NEC USA developed one of the world's first pre-commercial broadband wireless local area networks ("WATMnet") for use in the 5 Ghz band.  His research  and new technology development experience also includes VSAT networks (1984-87), digital TV/HDTV (1988-91), ATM/IP switching & QoS (1993-97), multimedia network processor (1993-95) and MIMO/OFDM system (2000-01).  He has an extensive record of publications and patents in the fields of data networking and wireless systems.  Dr. Raychaudhuri obtained his B.Tech (Hons) from the Indian Institute of Technology, Kharagpur in 1976 and the M.S. and Ph.D degrees from SUNY, Stony Brook in 1978, 79.  He is a Fellow of the IEEE.