signature=7d1ba8b1a785fd3bfbbb79e351f17e6e,TAIL-BITING CONVOLUTIONAL DECODER AND DECODING METHOD

He Yue

于 2021-05-30 03:21:55 发布

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文章标签： signature=7d1ba8b1a785fd3bfbbb79e351f17e6e

文章提出了利用传统未被卷积解码器利用的接收数据流中的CRC校验和双方已知信息来改进尾咬卷积码的解码方法。通过单一并行回溯降低实现复杂性，并反转前向处理中做出的最不可靠决策以生成更多可能的码字候选，从而降低错误检测率和检测错误率。

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摘要：

Techniques are provided for decoding tail-biting convolutional codes by using information within the received data stream that traditionally has not been used or been available to the convolutional decoder, e.g., cyclic redundancy check (CRC) and bit information known by both the transmitter and receiver. Further, a single parallel trace-back is used that reduces implementation complexity. In addition, the least reliable decisions made during forward processing may be reversed in order to generate additional possible codeword candidates. These techniques can be used to reduce false detection rates (FDRs) and/or detection error rates (DERs).

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