The Evolution of Cellular Standards
Dr. Carl Panasik
Wireless Communication Unit
Friday, August 30th, 3:00 PM, ENS 302
The evolution of wireless communications will soon bring the Internet to
hand-held battery powered devices. How did cellular start, how does it
work? Why is there more than one cellular system for voice, what's the
difference? What's the status of high-speed wireless data? These
questions and more will be discussed in an interesting technical review
of the personal wireless communications evolution from physical layer to
signal processing algorithms.
Starting with the concept of cellular, we will discuss the development of
cellular standards for voice [TDMA (GSM) vs CDMA (IS-95)], for voice and
data [GPRS vs IS-95B] and voice w/high-speed internet access [WCDMA vs
IS-2000]. Pundits in the trade press say that 3G won't happen due to
business uncertainty. We'll take a look at 3G-like systems, focusing on
several recent proposals for high speed wireless data [HDR, 1xEV-DO,
1xEV-DV, EDGE, WLAN] as alternatives to 3G.
Carl is a Technical Manager for US-based R&D in the Wireless Business
Unit of Texas Instruments, Dallas since 1997. He defined and had
produced the spec-compliant RF transceiver used in the W-CDMA prototype.
Carl directed the research effort (>30 contributors) on all aspects of
the Third Generation cellular handset. Elected to Distinguished Member
of Technical Staff in 1999. Over 30 journal papers and conference
presentations, he has seven granted patents (25 pending) in the area of
signal processing and wireless communication. Carl received the MS and
Ph.D degrees from University of Illinois, Urbana-Champaign.
A list of Wireless Networking and Communications Seminars is available at
from the ECE department Web pages under "Seminars".
The Web address for the Wireless Networking and Communications Seminars is