The Evolution of Cellular Standards

Dr. Carl Panasik

Wireless Communication Unit
Texas Instruments

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