2 :0 0 p m - 6 :0 0 p m
TUTORIAL VI
Wireless Networking using IEEE 802.11 and Bluetooth: Technology and Research Challenges
Pravin Bhagwat
Indian Institute of Technology, Kanpur and Winlab, Rutgers University
Rajeev Shorey
IBM India Research Lab. and Indian Institute of Technology, New Delhi

Audience: This tutorial is intended for researchers and practitioners who want to track new developments in short range wireless communication, but who don't have time or patience to read all specifications. Computer professionals who want to develop better understanding of technology trends and identify new market opportunities in the area of wireless networking will also benefit from this tutorial. Basic understanding of layered network architecture is expected. No background in analog radio, signal processing, or wireless communication is required.

Course Description: The promise of untethered computing in the workplace is becoming a reality. IEEE 802.11b, the 11 Mbps wireless LAN standard, has finally arrived, and early market response has been positive. As the WLAN market takes off, Bluetooth, another emerging standard for shortrange wireless networking, is also gathering force. Several vendors have demonstrated Bluetooth products, including cordless headsets, PCMCIA cards, and LAN access points. Both standards are competing for the same airwaves, but are they also chasing the same market? Will Bluetooth and 802.11b complement each other, or will one technology eventually displace the other? This tutorial will explain the key design aspects of IEEE 802.11 and Bluetooth standards and illustrate how technology innovation and market forces are shaping their evolution. We will begin with some basic concepts (RF, signal processing) and technology trends (low cost, low power, small form factor). We will then give an overview of 802.11b and the Bluetooth 1.1 specifications. This will be followed by a brief discussion of Wireless PANs and the IEEE 802.15.1 standard. The final part will be devoted to future directions and open research issues in Wireless LANs and Wireless PANs.

Lecturers: Pravin Bhagwat is an entrepreneur and a wellknown researcher in the area of wireless and mobile networking. Currently, he is directing a largescale 802.11 deployment project in India and also working as a visiting professor in the computer science department, IIT Kanpur. He was the principal architect at ReefEdge, Inc., a wireless networking infrastructure and software company based in NJ. He played an active role in the standardization of Bluetooth PAN profile and also served as the chair of the Internet Engineering Task Force BOF on IP over Bluetooth. Prior to working for ReefEdge, he worked as technology consultant in the Networking Research group at AT&T Labs Research, and as a member of research staff at IBM Thomas J. Watson Research Center. He is the chief architect of BlueSky, an indoor wireless networking system for palmtop computers, and the co-inventor of TCP splicing, a technique for building fast application layer proxies. He received his Ph.D. in computer science from the University of Maryland, College Park.

Rajeev Shorey received the Bachelor of Engineering (B.E) degree in Computer Science from the department of Computer Science and Automation, Indian Institute of Science, Bangalore, India in 1987. He received the M.S and Ph. D degrees in Electrical Communication Engineering from the Indian Institute of Science, Bangalore, India, in 1990 and 1995 respectively. From December 1995 to February 1998, he was with Silicon Automation Systems (now Sasken), Bangalore, India where he worked in the performance modeling and analysis of CDMA networks. Since March 1998, he is a Research Staff Member in the IBM India Research Laboratory, Indian Institute of Technology, New Delhi, India. His research interests include wireless networks, Internet protocols, performance modeling and analysis of wireline and wireless networks. Dr. Shorey is in the technical program committee of several international conferences in networking, namely, IEEE Infocom 2002, IEEE Infocom 2003, IEEE ICC 2003, and IEEE Globecom 2002. He is an adjunct faculty in the department of Computer Science and Engineering, Indian Institute of Technology, New Delhi and is a senior member of IEEE.