A note on error correction schemes with a feedback channel

Naoto Kobayashi; Daiki Koizumi; Toshiyasu Matsushima; Shigeichi Hirasawa

doi:10.1093/ietfec/e89-a.10.2475

A note on error correction schemes with a feedback channel

Naoto Kobayashi^*, Daiki Koizumi, Toshiyasu Matsushima, Shigeichi Hirasawa

^*Corresponding author for this work

School of Fundamental Science and Engineering

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

2 Citations (Scopus)

Abstract

We propose a new fixed-rate error correction system with a feedback channel. In our system, the receiver transmits a list of positions of unreliable information bits based on the log a-posteriori probability ratios by outputs of a soft-output decoder to the transmitter. This method is just like that of the reliability-based hybrid ARQ scheme. To dynamically select an appropriate interleaving function with feedback information is a key feature of our system. By computer simulations, we show that the performance of a system with a feedback channel is improved by dynamically selecting an appropriate interleaving function.

Original language	English
Pages (from-to)	2475-2480
Number of pages	6
Journal	IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Volume	E89-A
Issue number	10
DOIs	https://doi.org/10.1093/ietfec/e89-a.10.2475
Publication status	Published - 2006 Oct

Keywords

A-posteriori probability decoder
Feedback channel
Reliability based hybrid ARQ scheme
Turbo codes

ASJC Scopus subject areas

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

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10.1093/ietfec/e89-a.10.2475

Cite this

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AU - Kobayashi, Naoto

AU - Koizumi, Daiki

AU - Matsushima, Toshiyasu

AU - Hirasawa, Shigeichi

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AB - We propose a new fixed-rate error correction system with a feedback channel. In our system, the receiver transmits a list of positions of unreliable information bits based on the log a-posteriori probability ratios by outputs of a soft-output decoder to the transmitter. This method is just like that of the reliability-based hybrid ARQ scheme. To dynamically select an appropriate interleaving function with feedback information is a key feature of our system. By computer simulations, we show that the performance of a system with a feedback channel is improved by dynamically selecting an appropriate interleaving function.

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KW - Turbo codes

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A note on error correction schemes with a feedback channel

Abstract

Keywords

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