Title:
DIRECTIONAL ANTENNA BASED PERFORMANCE EVALUATION OF 802.11 WIRELESS
LOCAL AREA NETWORKS

Abstract:
In this talk, the use of directional antennae on access points in
wireless local area networks to sectorize the coverage area is proposed.
This is shown to be a simple way to significantly increase throughput
while greatly reducing the occurrence of the hidden terminal problem.
First, we discuss the current use of sectorization in various wireless
networks, including cellular and ad hoc networks. Then, we present the
details of the proposed architecture, describing the necessary
enhancements to the current Access Point functionality and examining the
tradeoffs of costs and infrastructure. Finally, we carry out a
performance analysis to demonstrate the marked increase in throughput
and efficiency achieved by the new technique.

Bio:
Mr. Kartikeya Tripathi is a PhD student in the Electrical and Computer
Engineering Department at the University of Florida. He received a
Master's Degree in Electrical and Computer Engineering at the
University of Florida in 2003.  Since that time, he has been a Ph.D.
candidate and a research assistant at the Laboratory for Information
Systems and Telecommunications and Wireless and Mobile Systems
Laboratory. His research includes medium access and sectorization issues
for 802.11 based Wireless Local Area Networks and related architectures.