本文将低时延的流水型译码器应用到BICM(bit-interleaved coded modulation)算法中,与同样使用8-PSK调制、卷积编码的BICM-ID(bit-interleaved coded modulation with iterative decoding)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 是,本文提出的改进算法有较低的译码时延。 关键词:网格编码调制,基于迭代译码的比特交织编码调制,流水型译码 Bit-interleaved Coded Modulation Using Low-Delay Concatenated Decoding ZHAO Yan, ZHANG Xiao-Yi (communication engineering department of PLA information engineering university) Abstract: 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. Key words: TCM, BICM-ID, concatenated decoding