| 基于 Min-Sum-MSE的多用户MIMO训练序列与数据功率联合优化 |
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| 引用本文： | 王丽,胡捍英,唐其辉,张建安. 基于 Min-Sum-MSE的多用户MIMO训练序列与数据功率联合优化[J]. 电路与系统学报, 2011, 16(3): 44-49 |
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| 作者姓名： | 王丽 胡捍英 唐其辉 张建安 |
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| 作者单位： | 信息工程大学信息工程学院;信息工程大学电子技术学院昆明分院; |
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| 基金项目： | 国家863计划重点项目(2009AA011504); 国家重大专项(2009ZX03003-008) |
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| 摘 要： | 本文研究了多用户MIMO系统中基于Sum-MSE最小准则预编码的训练序列与数据联合功率分配问题.考虑信道空间相关性,采用MMSE准则进行信道估计,在训练序列与数据总功率一定的条件下,通过分析上下行链路存在MSE对偶性,将下行Sum-MSE最小化转化为上行Sum-MSE最小化问题.然后推导了在发送端存在相关性时该功率联合...
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| 关 键 词： | 多用户MIMO 功率分配 Sum-MSE最小准则 MMSE信道估计 |
Joint optimization of training and data power based on Min-Sum-MSE for multiuser MIMO |
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| WANG Li,HU Han-ying,TANG Qi-hui,ZHANG Jian-an. Joint optimization of training and data power based on Min-Sum-MSE for multiuser MIMO[J]. Journal of Circuits and Systems, 2011, 16(3): 44-49 |
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| Authors: | WANG Li HU Han-ying TANG Qi-hui ZHANG Jian-an |
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| Affiliation: | WANG Li1,2,HU Han-ying1,TANG Qi-hui2,ZHANG Jian-an2(1.Institute of Information Engineering,Information Engineering University,Zhengzhou 450002,China,2.Kunming school,Institute of Electronic Technology,Kunming 650031,China) |
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| Abstract: | In this paper,joint power allocation of training and data for multiuser MIMO based on minimum Sum-MSE precoding with the constraint of total power of training and data is investigated,which adopts MMSE channel estimation and considers spatial correlations.By utilizing MSE-duality,the downlink Sum-MSE minimum problem is converted into uplink Sum-MSE minimum problem.And closed-form expressions for the optimal training power are also concluded with transmit correlation.More powers for total training sequences ... |
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| Keywords: | multiuser MIMO power allocation minimum Sum-MSE criterion MMSE channel estimation |
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