Title

Iterative Viterbi algorithm: Implementation issues

Authors

Authors

L. Wei

Comments

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Abbreviated Journal Title

IEEE Trans. Wirel. Commun.

Keywords

coding for wireless systems; iterative decoding; serial concatenated; codes; turbo decoding; Viterbi decoding; CONVOLUTIONAL-CODES; TURBO-CODES; DECODER; COMMUNICATION; PERFORMANCE; POWER; Engineering, Electrical & Electronic; Telecommunications

Abstract

We address several issues for implementing the iterative Viterbi decoder. We show that 3-bit branch metric quantization, 7- or 8-bit state metric precision, and a survivor length of five times the constraint length yields little degradation for the iterative Viterbi algorithm (IVA). Our results show that without changing the VA hardware (except adding some additional circuits), the error performance of several standard systems can be significantly improved.

Journal Title

Ieee Transactions on Wireless Communications

Volume

3

Issue/Number

2

Publication Date

1-1-2004

Document Type

Article

Language

English

First Page

382

Last Page

386

WOS Identifier

WOS:000220158400008

ISSN

1536-1276

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