| 利用匹配滤波改进MIMO预编码方案 |
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| 引用本文： | 牛兰奇,张太镒,孙建成.利用匹配滤波改进MIMO预编码方案[J].电子科技大学学报(社会科学版),2010(5). |
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| 作者姓名： | 牛兰奇 张太镒 孙建成 |
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| 作者单位： | 西安交通大学电子与信息工程学院;西安理工大学自动化与信息工程学院;江西财经大学电子学院; |
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| 基金项目： | 国家自然科学基金项目(60602034) |
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| 摘 要： | 针对多用户多输入多输出(MIMO)系统下行链路的共信道干扰(CCI)问题,提出了一种可以实现发射机和接收机联合设计的预编码方案。该方案假定接收机为匹配滤波器,避免了最小均方误差(MMSE)准则下发射机和接收机联合设计中的迭代操作,同时将迫零处理引入MMSE方法,完全消除了CCI。为进一步简化联合设计问题,对等效信道矩阵进行奇异值分解,将向量优化问题转化为标量优化问题。仿真结果表明,与其他非迭代的预编码方案相比,该联合设计的预编码方案可以获得更好的平均误比特率性能和总容量性能。
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| 关 键 词： | 匹配滤波器 最小均方误差 多输入多输出 预编码 迫零 |
Improvement on MIMO Precoding Scheme by Matched Filtering |
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| NIU Lan-qi,ZHANG Tai-yi, SUN Jian-cheng.Improvement on MIMO Precoding Scheme by Matched Filtering[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2010(5). |
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| Authors: | NIU Lan-qi ZHANG Tai-yi SUN Jian-cheng |
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| Institution: | NIU Lan-qi1,2,ZHANG Tai-yi1,, SUN Jian-cheng1,3 (1.School of Electronics , Information Engineering,Xi'an Jiaotong University Xi'an 710049,2.School of Automation , Information Engineering,Xi'an University of Technology Xi'an 710048,3.School of Electronics,Jiangxi University of Finance , Economics Nanchang 330013) |
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| Abstract: | A precoding scheme for solving the co-channel interference(CCI) problem of multiuser multi-input multi-output(MIMO) downlink is proposed.This scheme can implement the joint designs of transmitter and receiver and avoid iteration operation under the minimum mean square error(MMSE) criterion by regarding the receiver as a matched filter.The CCI in the proposed scheme is eliminated fully by introducing the zero-force(ZF) method into the MMSE criterion.To simplify the joint design further,the vector optimal des... |
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| Keywords: | matched filter minimum mean square error multi-input multi-output precoding zero-force |
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