无线应用的并行连接编码方案

ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Pub Date : 1998-10-05 DOI:10.1109/ICUPC.1998.733626

S. Benedetto, R. Garello, G. Montorsi

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引用次数: 2

摘要

我们设计了并行串联卷积编码(PCCC)方案(“turbo码”)，适用于需要短延迟的无线应用。特别注意对代码交织器的不同解决方案进行比较。采用一种新的算法对PCCC整体距离频谱进行评估，并利用低误码率下的解析上界和高误码率下的迭代译码算法进行仿真，对几种备选交织器进行了分析和比较。PCCC速率和交织器长度的选择基于GSM系统，以便能够将新方案与现有信道编码标准得到的结果进行比较，对于TCH/FS GSM(全速率语音业务信道)，现有信道编码标准由(53,50)奇偶校验码和16状态速率1/2二进制卷积码组成。

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Parallel concatenated coding schemes for wireless application

We design parallel concatenated convolutional coding (PCCC) schemes ("turbo codes") suitable for wireless applications requiring short latencies. Particular attention is devoted to the comparison of different solutions for the code interleaver. A new algorithm is applied to the evaluation of the distance spectrum of the overall PCCC, and several interleaver alternatives are analyzed and compared using analytical upper bounds at low BER and simulation through the iterative decoding algorithm at high BER. The choice of the PCCC rate and of the interleaver length are based on the GSM system, so as to be able to compare the new solution with the results obtainable by the present channel coding standard, which, for TCH/FS GSM (full rate speech traffic channel), consists of a (53,50) parity check code followed by a 16-state rate 1/2 binary convolutional code.

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ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384)

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