The North Jersey Chapter of the IEEE Communications Society
              New Jersey Center for Wireless Telecommunications
                                and
                Detp. of ECE, New Jersey Institute of Technology
                           jointly present

Characterization of Fading Channels in Mobile Communications

                                by
                        Prof. Dong-Feng Yuan
                   Dept. of Electronic Engineering
                  Shandong University, P. R. China

ABSTRACT:
In mobile communications systems, due to the mobility of transmitters
and/or receivers, the propagation channels may be time-varying,
this is particularly true in the non-uniform environments, where the
traditional Rayleigh or Rician distributions may not be appropriate
for the channel characterization. In this talk a simple partitioned
Markov model with three or four states is proposed to model the
fading channels. Field test measurements in a cellular mobile system in
Jinan city have been used for curve fitting. It has been shown that
this model can also be applied to more general mobile
communications systems with various modulation schemes and vehicle
speeds in other non-uniform environments. Based on this model, we will
discuss the error control systems design for the "really long burst
error" in the typical mobile fading environments.

BIOGRAPHY:
Prof. Yuan received his MS degree in electrical engineering from
Shandong University in China in 1988 and will receive his Ph. D
degree in electrical engineering from Tsinghua University in China
in October 1999. He is now a full professor and department chair in
the Department of Electronic Engineering at Shandong University, China.
He was a visiting professor in the Department of Electrical and
Computer Engineering at University of Calgary, Canada and a visiting
professor in the Department of Electrical Engineering at
Erlangen University, Germany. His research areas include Multilevel
coding(MLC), Multistage decoding (MSD) and their applications in digital
mobile fading channels.

ALL ARE WELCOME TO ATTEND!

Time:     Monday, September 27th, 1999
                  Refreshment 4:15PM, Seminar 4:30PM
Place:   NJIT, ECEC Room 202

For more information: Contact Professor Hongya Ge at
Tel. (973) 642-4990, E-mail: hongya@megahertz.njit.edu
or Cynthia McCray at Tel. (973) 596-5548, E-mail: mccray@njit.edu

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