Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

On the iterative decoding of concatenated partial unit memory codes structures

Stankovic, L. and Honary, B. (2004) On the iterative decoding of concatenated partial unit memory codes structures. In: 1st International Symposium on Wireless Communication Systems 2004, 2004-09-20 - 2004-09-22.

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

The aim of this paper is to describe in detail the iterative decoding algorithm used during the implementation of concatenated Partial Unit Memory (PUM) code structures, such as turbo and woven turbo constructions based on PUM codes. Previous published research by the authors have shown that such concatenated PUM code structures have better distance properties and performance than equivalent structures based on convolutional codes. The decoding algorithm presented is based on the max-log MAP algorithm used for classical turbo codes with component convolutional codes. Unlike the trellis of a convolutional code, the trellis of PUM codes is characterised by parallel branches between state pairs and multiple input branch labels. We show how the original max-log MAP algorithm is adapted to cope with the unusual trellis structure of PUM codes. The proof that our algorithm performs satisfactorily is illustrated by the relative performance, for different iterations, of turbo and woven turbo structures based on PUM codes, which approach the Shannon limit.

Item type: Conference or Workshop Item (Paper)
ID code: 38234
Keywords: Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
Depositing user: Pure Administrator
Date Deposited: 06 Mar 2012 15:39
Last modified: 17 Jul 2013 15:32
URI: http://strathprints.strath.ac.uk/id/eprint/38234

Actions (login required)

View Item