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一种低时延的基于流水型译码器的BICM算法
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2009-06-06
山中老虎
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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
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
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