| MIMO系统下行多用户线性疏散空时编码设计方案 |
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| 引用本文： | 周猛,张灿. MIMO系统下行多用户线性疏散空时编码设计方案[J]. 通信学报, 2010, 31(1): 135-140 |
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| 作者姓名： | 周猛 张灿 |
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| 作者单位： | 1. 中国移动通信集团公司,北京,100032
2. 中国科学院,研究生院,信息科学与工程学院,北京,100049 |
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| 摘 要： | 针对使用了MIMO传输技术的单小区下行移动通信系统,在基站只能以有限个数据速率下传数据给移动台的条件下,给出了使得每个移动台接收信噪比达到最大的多用户线性疏散码所对应的组合优化问题,并给出求解该组合优化问题的低复杂度次最优算法.所给出的线性疏散码的设计方案,克服了前人连续数据传输速率的限制,更加接近实际系统.仿真结果表明,此算法性能较前人算法有所改进.
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| 关 键 词： | MIMO系统 多用户下行传输 线性疏散码 空时预处理 |
Design scheme of linear dispersive space-time codes for downlink multiuser MIMO systems |
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| ZHOU Meng,ZHANG Can. Design scheme of linear dispersive space-time codes for downlink multiuser MIMO systems[J]. Journal on Communications, 2010, 31(1): 135-140 |
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| Authors: | ZHOU Meng ZHANG Can |
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| Affiliation: | ZHOU Meng1,ZHANG Can2 (1. China Mobile Communications Corporation,Beijing 100032,China,2. School of Information Science , Engineering,Graduate University of Chinese Academy of Sciences,Beijing 100049,China ) |
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| Abstract: | A scheme of linear dispersive space-time codes was presented for downlink multiuser MIMO systems under the condition only limited rates could be employed by basestation for transmitting downlink data. The combination optimization problem with respect to the design was deduced, and a suboptimal algorithm with low computational complexity was given. The designed scheme does not require the condition of continuous downlink rates, which was assumed in previous work. Simulations show that the designed scheme has... |
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| Keywords: | M1MO systems multiuser downlink transmission linear dispersive codes space-time precoding |
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