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首页> 外文期刊>IEICE Transactions on Communications >Performance and complexity of circular decoding for tail-biting convolutional codes
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Performance and complexity of circular decoding for tail-biting convolutional codes

机译:尾比特卷积码循环解码的性能和复杂性

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摘要

The circular decoding algorithm for tail-biting convolutional codes is executed a fixed number of computa- tions and is suitable for DSP/ASIC implementations. This letter presents the performance and complexity trade-off in the circular decoding algorithm using an analytic bound on the error proba- bility. An incremental performance improvement is shown as the complexity increases from O(L) to O(L+10K)where L is the length of the decoding trellis and K is the constraint length. The decoding complexity required to produce the maximum Likelihood performance is presented, which is applicable to many Codes of practical interest.
机译:用于尾位卷积码的循环解码算法可以执行固定数量的计算,并且适用于DSP / ASIC实现。这封信使用错误概率的解析界线,介绍了循环解码算法中的性能和复杂性之间的权衡。随着复杂度从O(L)到O(L + 10K)的增加,性能得到了提高,其中L是解码格的长度,K是约束长度。给出了产生最大似然性能所需的解码复杂度,该解码复杂度适用于许多实际感兴趣的代码。

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