利用外部信息减少turbo译码的迭代次数

Proceedings of IEEE. IEEE Region 10 Conference. TENCON 99. 'Multimedia Technology for Asia-Pacific Information Infrastructure' (Cat. No.99CH37030) Pub Date : 1999-09-15 DOI:10.1109/TENCON.1999.818459

B. Kim, Hwang-Soo Lee

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引用次数: 15

摘要

Turbo解码可以以迭代的方式完成。这需要解码输入数据的延迟和计算复杂性。我们提出了一种高效的turbo码译码算法，可以大大减少延迟和计算量。它使用外部信息作为每个译码位的可靠性度量。当外部信息的方差超过一定阈值时，译码迭代停止，对传统译码算法的性能损失可以忽略不计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Reduction of the number of iterations in turbo decoding using extrinsic information

Turbo decoding can be done in an iterative manner. This requires the delay and computational complexity for decoding an input data. We propose an efficient algorithm of decoding turbo codes that can greatly reduce the delay and computation. It uses extrinsic information as the reliability measure of each decoded bit. When the variance of the extrinsic information exceeds a threshold the iteration for decoding stops with negligible performance loss to conventional decoding algorithm.

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来源期刊

Proceedings of IEEE. IEEE Region 10 Conference. TENCON 99. 'Multimedia Technology for Asia-Pacific Information Infrastructure' (Cat. No.99CH37030)

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