Performance Evaluation of Turbo Codes with Code-Matched Interleaver over Inter-Symbol Interference Channel

Haruo OGIWARA  Masanobu KASAWA  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E85-A   No.10   pp.2203-2210
Publication Date: 2002/10/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications)
Category: Coding Theory
Keyword: 
turbo code,  code-matched interleaver,  inter-symbol interference,  uniform interleaver,  

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Summary: 
A performance evaluation method of turbo codes is proposed. For turbo codes with code-matched interleaver, performance is approximately evaluated by using conditional weight enumerating function with input weight greater than two. Performance of turbo codes over an inter-symbol interference (ISI) channel is evaluated by using a combined trellis diagram, into which the trellis diagram of the component code and the trellis diagram of the inter-symbol interference channel are combined. Optimum codes are searched for an ISI channel and for an ISI-free channel with the code matched-interleaver. Simulation results show the evaluated performance is valid.