| 多用户MIMO系统下行收发联合设计 |
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| 引用本文： | 祝锴,胡捍英,崔维嘉.多用户MIMO系统下行收发联合设计[J].计算机工程与设计,2011,32(1):75-77,81. |
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| 作者姓名： | 祝锴 胡捍英 崔维嘉 |
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| 作者单位： | 1. 解放军信息工程大学,信息工程学院,河南,郑州,450002;61785部队,北京,100076
2. 解放军信息工程大学,信息工程学院,河南,郑州,450002 |
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| 基金项目： | 国家863高技术研究发展计划重点基金项目(2009AA011504); 国家重大科技专项基金项目(2009ZX03003-008) |
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| 摘 要： | 提出了一种改进的基于最小和均方误差(TMMSE)准则的MIMO系统下行链路收发联合设计算法,该算法通过迭代求解预编码和解码矩阵。相比于已有算法,充分利用了信道状态信息,借鉴BD算法的思想优化了迭代初值的选取。将求解Lagrange乘子的过程由非线性转化为线性,获得了Lagrange乘子的解析解,并使计算结果更加精确。仿真结果表明,该算法获得了更快的收敛速度,系统的误码性能得到显著提升,同时算法的计算复杂度明显降低。
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| 关 键 词： | 多用户MIMO 预编码 解码 最小和均方误差 收发联合设计 |
Modified joint transceiver design for downlink of multi-user MIMO system |
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| ZHU Kai,HU Han-ying,CUI Wei-jia.Modified joint transceiver design for downlink of multi-user MIMO system[J].Computer Engineering and Design,2011,32(1):75-77,81. |
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| Authors: | ZHU Kai HU Han-ying CUI Wei-jia |
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| Affiliation: | ZHU Kai1,2,HU Han-ying1,CUI Wei-jia1(1.Institute of Information Engineering,PLA Information Engineering University,Zhengzhou 450002,China,2.Unit 61785,Beijing 100076,China) |
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| Abstract: | A improved transceiver design based on the minimum total mean square error criterion for the downlink of MIMO system is proposed.Compared to the existing method,the algorithm takes full advantage of the channel state information and optimizes the initial value of the iterative algorithm by borrowing the ideas of BD algorithm.On the other hand,the proposed algorithm changes the progress of solving the Lagrange factor fromnonlinear to linear,gets the analytic solution of Lagrange factor and makes the factor m... |
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| Keywords: | multi-user MIMO precoding decoding TMMSE joint transceiver design |
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