APP Decoding of Block Codes Over Prime Fields on Non-Binary Gilbert-Elliott Channels

Document type: Conference Papers
Peer reviewed: Yes
Author(s): Wayne Griffiths, Hans-Jürgen Zepernick, Manora Caldera
Title: APP Decoding of Block Codes Over Prime Fields on Non-Binary Gilbert-Elliott Channels
Conference name: Radio Science and Communications, RVK08
Year: 2008
Pagination: 171-175
City: Växjö, Sweden
Organization: Blekinge Institute of Technology
Department: School of Engineering - Dept. of Signal Processing (*** Error ***)
School of Engineering S- 372 25 Ronneby
+46 455 38 50 00
http://www.tek.bth.se/
Authors e-mail: griffithsw@watri.org.au, hans-jurgen.zepernick@bth.se, mcaldera@gqaas.com.au
Language: English
Abstract: We present an a-posteriori probability (APP) decoding algorithm for linear block codes over prime fields when used on non-binary Gilbert-Elliott channels (GECs). The proposed approach is based on a single-sweep APP decoding technique that uses matrix multiplications. The trellis-based decoding algorithm incorporates the channel-induced error process by modeling it as a stochastic automaton. It is applicable to high rate block codes over prime fields on channels with memory such as the non-binary GEC. It allows simple implementation in the spectral domain.
Subject: Telecommunications\Coding Theory
Keywords: APP Decoding, Block Codes, Gilbert-Elliott Channel
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