一种低时延的基于流水型译码器的BICM算法

Bit-interleaved Coded Modulation Using Low-Delay Concatenated Decoding

本文将低时延的流水型译码器应用到BICM(bit-inter鄄leavedcodedmodulation)算法中,与同样使用8-PSK调制、卷积编码的BICM-ID(bit-interleavedcodedmodulationwithiter鄄ativedecoding)相比,在瑞利衰落及加性白高斯信道下,获得了相同的BER性能。重要的是,本文提出的改进算法有较低的译码时延。

A simple concatenated decoding technique using hard-decision feedback is presented for bit-interleaved coded modulation (BICM). For 8-PSK signaling over AWGN and Rayleigh channels, the proposed scheme exhibits the same BER performance as traditional bit-interleaved coded modulation with iterative decoding (BICM-ID) approach based on convolutional codes. And the main advantage of the proposed scheme relies on its low decoding delay.