Threshold for the early detection method and an output SNR stop criterion for Turbo codes

Xiangming Li; Guangxin Yue; Changchuan Yin

Threshold for the early detection method and an output SNR stop criterion for Turbo codes

Xiangming Li^*
, Guangxin Yue
, Changchuan Yin

^*此作品的通讯作者

Beijing University of Posts and Telecommunications

科研成果: 期刊稿件 › 文章 › 同行评审

1 引用（Scopus）

摘要

A hypothesis to take the physical channel and Turbo decoder as a joint equivalent AWGN channel was presented. On the basis of this hypothesis, the SNR (signal-to-noise ratio) of the Turbo decoder output LLR (logarithm likelihood ratio) can be used as a criterion to stop the iterative procedure. In order to reduce the decoder complexity, the symbol whose LLR is larger than a given threshold can be decided for output. A method to determine the theoretical value of threshold was given.

源语言	英语
页（从-至）	46-50
页数	5
期刊	Beijing Youdian Xueyuan Xuebao/Journal of Beijing University of Posts And Telecommunications
卷	23
期	1
出版状态	已出版 - 3月 2000
已对外发布	是

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AB - A hypothesis to take the physical channel and Turbo decoder as a joint equivalent AWGN channel was presented. On the basis of this hypothesis, the SNR (signal-to-noise ratio) of the Turbo decoder output LLR (logarithm likelihood ratio) can be used as a criterion to stop the iterative procedure. In order to reduce the decoder complexity, the symbol whose LLR is larger than a given threshold can be decided for output. A method to determine the theoretical value of threshold was given.

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Threshold for the early detection method and an output SNR stop criterion for Turbo codes

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