| Our research is
concentrated in the area of digital
wireless communications.We have been
studying methods of performing subscriber
(i.e., cell phone) location in
Code-Division Multiple Access (CDMA)
cellular networks. Wireless location
techniques encounter interesting
challenges when applied to cellular
networks, especially for CDMA systems due
to the near-far effect.
There
are many applications for both consumers
and businesses including roadside
assistance, emergency services and fleet
operations, just to name a few. There are
also important applications for
Intelligent Transportation Systems (ITS,
formerly IVHS) in the areas of traffic
management systems, traveler information
systems, highway automation, etc.
Cellular service providers can also
benefit from subscriber location
technology. It offers the ability to
locate fraudulent users, charge for
services based on location, and radio
resource management. Additionally, the
FCC has recently ordered that service
providers provide Enhanced-911 (E-911)
services to their customers to within 125
meters in 67% of the cases within the
next five years.
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