Multichannel maximum-likelihood sequence estimation (MLSE)equalizer for GSM using a parametric channel model
Jiunn-Tsair Chen
Paulraj, A.
Reddy, U.
Dept. of Electron. Eng., Nat. Taiwan Univ., Taipei ;
This paper appears in: Communications, IEEE Transactions on
Publication Date: Jan 1999
Volume: 47,
Issue: 1
On page(s): 53-63
ISSN: 0090-6778
References Cited: 28
CODEN: IECMBT
INSPEC Accession Number: 6185000
Digital Object Identifier: 10.1109/26.747813
Current Version Published: 2002-08-06
Abstract
We propose a novel algorithm for the maximum-likelihood sequence
estimation (MLSE) equalizer for the Global System for Mobile
Communications (GSM) system. Specifically, we use a parametric model for
the channel, along with a modified phase pulse-shaping function of
Gaussian minimum shift keying (GMSK) modulation to obtain the modified
Viterbi equalizer which we refer to as the parametric channel-Viterbi
equalizer (PC-VE). In contrast to the conventional Viterbi equalizer
with a finite impulse response (FIR) channel description, the PC-VE
avoids the linear approximation error. The PC-VE also has a lower
computational complexity if the number of the propagation paths is less
than the number of the FIR channel taps multiplied by the number of
antennas. The proposed algorithm is applicable to both single and
multiantenna receivers. An analytical expression for the BER as a
function of the SNR, path delays, and path DOAs has been derived. Some
simulation results that illustrate the performance of the proposed
algorithm are presented
Index
Terms
Available to subscribers and IEEE members.
References
Available to subscribers and IEEE members.
Citing Documents
Available to subscribers and IEEE members.
Cart
