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多维映射BICM-ID系统的简化MD-LSD解映射算法 被引量：1

Simplified MD-LSD demapping algorithm for BICM-ID systems with multi-dimensional mappings
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摘要 将二维映射下的软输入软输出解映射MAX-LOG-MAP算法扩展到多维映射比特交织编码调制及迭代译码(BICM-ID)系统,并首次结合多天线系统下的列表球形译码,提出一种简化MD-LSD(multi-dimensional list sphere decoding)算法。新算法大幅降低了多维解映射的计算复杂度。仿真结果表明,列表长度满足一定范围时,采用简化MD-LSD算法解映射算法的性能损失可以忽略。 The soft in soft out MAX-LOG-MAP algorithm of conventional mappings was expanded to the BICM-ID system with multi-dimensional mappings. A multi-dimensional list sphere decoding （MD-LSD） algorithm was also proposed by using the list sphere decoding algorithm of multi-antenna systems. Compared with the MD-MAX-LOG-MAP algorithm, the computational complexity of MD-LSD was decreased significantly. Simulation results show that the performance degradation of the simplified MD-LSD algorithm can be ignored when the list length is in a certain range.
作者 宫丰奎 葛建华 王勇
机构地区 西安电子科技大学ISN国家重点实验室
出处 《通信学报》 EI CSCD 北大核心 2008年第2期111-115,共5页 Journal on Communications
基金 国家高技术研究发展计划("863"计划)基金资助项目(2006AA01Z270) 国家自然科学基金资助项目(60496316) 陕西省自然科学基金资助项目(2007F07)~~
关键词 BICM-ID 多维映射 软输入软输出解映射 多维列表球形译码 bit-interleaved coded modulation with iterative decoding multi-dimensional mapping soft in soft out demapper multi-dimensional list sphere decoding
分类号 TN911 [电子电信—通信与信息系统]
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参考文献9

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二级参考文献27

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共引文献7

同被引文献10

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通信学报
2008年 第2期

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