| 未编码DUSTM系统的网格译码 |
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| 引用本文： | 李君,金宁,曹海燕.未编码DUSTM系统的网格译码[J].计算机工程与应用,2009,45(6):173-175. |
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| 作者姓名： | 李君 金宁 曹海燕 |
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| 作者单位： | 1. 中国计量学院,信息工程学院,杭州,310018
2. 杭州电子科技大学,通信工程学院,杭州,310018 |
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| 摘 要： | 提出了未编码DUSTM系统的网格译码。将DUSTM系统视为具有全状态转移的网格结构,采用维特比软译码算法进行信号解调。仿真结果表明该方案相比传统的基于单符号最大似然解调的DUSTM系统性能有大幅提升,且比编码DUSTM系统具有更高的频谱利用率。
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| 关 键 词： | DUSTM系统 分集乘积 信号星座 网格译码 |
| 收稿时间： | 2008-9-19 |
| 修稿时间： | 2008-12-9
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Trellis decoding scheme for uncoded Differential Unitary Space Time Modulation |
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| LI Jun,JIN Ning,CAO Hai-yan.Trellis decoding scheme for uncoded Differential Unitary Space Time Modulation[J].Computer Engineering and Applications,2009,45(6):173-175. |
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| Authors: | LI Jun JIN Ning CAO Hai-yan |
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| Affiliation: | LI Jun1,JIN Ning1,CAO Hai-yan21.College of Information Engineering,China Jiliang University,Hangzhou 310018,China 2.College of Communication Engineering,Hangzhou Dianzi University,China |
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| Abstract: | This paper presents the trellis decoding scheme of uncoded DUSTM system in the situation where its constellations form a group under the matrix multiplication.The system structure of DUSTM can be considered as a trellis structure which has full transition branches with the cardinality of the constellation as the number of the trellis states.Thus the soft Viterbi decoding algorithm can be performed.It is shown that more coding advantages can be gotten compared with the traditional uncoded DUSTM which is deco... |
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| Keywords: | Differential Unitary Space-Time Modulation（DUSTM） diversity product constellation trellis decoding |
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