M-ary soft information relaying of distributed turbo codes

Sung Kwon Hong; Jong Moon Chung; Daehwan Kim

doi:10.1587/transfun.E94.A.869

M-ary soft information relaying of distributed turbo codes

Sung Kwon Hong, Jong Moon Chung, Daehwan Kim

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

In this letter, an M-ary extension to the soft information relaying (SIR) scheme is derived for distributed turbo codes (DTCs) to enable higher data rate wireless communications with extended ranges. The M-ary based SIR design for DTCs is based on constructing a revised mapping constellation of the signals for calculating metrics from the soft mapping symbols. The numerical results show that DTCs using the proposed M-ary SIR with gray mapped quadrature phase shift keying (QPSK) provides a significant 5 dB performance gain over hard information relaying (HIR) DTCs at the 10^-3 bit error rate (BER) level.

Original language	English
Pages (from-to)	869-871
Number of pages	3
Journal	IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Volume	E94-A
Issue number	2
DOIs	https://doi.org/10.1587/transfun.E94.A.869
Publication status	Published - 2011 Feb

All Science Journal Classification (ASJC) codes

Signal Processing
Computer Graphics and Computer-Aided Design
Electrical and Electronic Engineering
Applied Mathematics

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10.1587/transfun.E94.A.869

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M-ary soft information relaying of distributed turbo codes

Abstract

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