Reduced-state sequence detection of multilevel partial-response signals

Author

Ölçer, Sedat

Author_Institution

IBM, Zurich Res. Lab., Ruschlikon, Switzerland

Volume

40

Issue

1

fYear

1992

fDate

1/1/1992 12:00:00 AM

Firstpage

3

Lastpage

6

Abstract

This work is concerned with the problem of designing reduced-complexity Viterbi decoders for the transmission of digital data over intersymbol interference channels. First, optimal state-grouping for constructing reduced-state trellises is presented and illustrative examples are given for multilevel transmission over partial-response channels of the type 1±Dⁿ, (1+D)², (1+D) ²(1-D), and (1+D)³(1-D). Then, the quaternary 1-D type partial-response channel is considered in more detail and a difference-matric algorithm employing state-reduction is derived and shown to result in a simple decoding scheme

Keywords

decoding; signal detection; signalling (telecommunication networks); telecommunication channels; decoding; difference-matric algorithm; digital data transmission; intersymbol interference channels; multilevel partial-response signals; multilevel transmission; optimal state-grouping; partial-response channels; reduced state sequence detection; reduced-complexity Viterbi decoders; reduced-state trellises; state-reduction; Decoding; Helium; History; Maximum likelihood detection; Modulation coding; Neodymium; Partitioning algorithms; Performance loss; Signal resolution; Viterbi algorithm;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.126700

Filename

126700