A Reduced Complexity Viterbi Equalizer used in Conjunction with a Pulse Shaping Method

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Per Ödling, Timo Koski, Per Ola Börjesson
Title: A Reduced Complexity Viterbi Equalizer used in Conjunction with a Pulse Shaping Method
Conference name: 3rd international symposium on signal processing and its applications
Year: 1992
Pagination: 125-9 vol.1
ISBN: 0 909394 28 8
Publisher: IREE Australia
City: Gold Coast, Australia
Organization: Blekinge Institute of Technology
Department: Dept. of Signal Processing (Institutionen för signalbehandling)
Dept. of Signal Processing S-372 25 Ronneby
+46 455 780 00
http://www.hk-r.se/isb/isb_en.html
Language: English
Abstract: The complexity of the Viterbi algorithm can be reduced by linear pre-equalization. The authors introduce a linear preprocessor using the weighted least squares filtering (WLS). The geometric technique of L. Barbosa (see IEEE Trans. Inf. Theory, vol.35, no.2, p.419-27, 1989) is evoked for analytical representation of the complexity reduction by pre-equalization, and for evaluation of error performance. They evaluate the bit error rate of the WLS preprocessor and of the linear preprocessor of Falconer and Magee (see Bell System Tech. Journal, vol.52, no.9, p.1541-62, 1973)
Subject: Signal Processing\Detection and Classification
Keywords: equalisers, error statistics, filtering and prediction theory, information theory, least squares approximations, maximum likelihood estimation, signal processing
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