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基于虚拟MIMO子信道的多用户分集资源调度算法 被引量：1

Muti-User Diversity Based on Virtual Sub-channel for MIMO System
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摘要 根据多天线(MIMO)信道空间相关特性,提出一种虚拟子信道的分析方法,从子信道角度探讨信道容量在发射端已知信道响应时预期的性能改善;在此基础上,提出一种逼近信道容量上限的波束形成方法,发掘MIMO信道矩阵最大奇异值与波束形成矢量潜在的联系,并从理论角度详细分析了单用户与多用户最大奇异值联合分布特性,实现阵列增益、空间分集和多用户分集充分融合;仿真与分析表明,利用用户间潜在的随机分布特性能有效提高用户的空间分集增益,提高系统资源利用率,对系统性能改善显著。 According to the analysis of MIMO spatial correlation, a virtual sub-channel is proposed to achieve the performance improvement when the CSI is available to the transmitter. Then maximum eigenvalue and the beamforming vector are discovered that aim to obtain the asympotic upper limit channel capacity. Furthermore, the maximum unioneigenvalue distribution for muti-user is analyzed. The simulation shows spatial diversity among users contain great potential for MIMO performance improvement.
作者 王德胜 朱光喜 刘应状 刘德明 胡臻平
机构地区 华中科技大学电信系
出处 《计算机科学》 CSCD 北大核心 2008年第6期114-117,共4页 Computer Science
基金 国家自然科学基金重大资助课题(60390540) 国家"十五"863重大资助项目(No2003AA12331005) 国家"十五"863面上资助项目(2006AA0Z277) 博士后基金一等资助(20070410279)
关键词 MIMO 分集 调度 MIMO, Diversity, Schedule
分类号 TN929.5 [电子电信—通信与信息系统] TN914.3 [电子电信—通信与信息系统]
  • 相关文献

参考文献9

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同被引文献11

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计算机科学
2008年 第6期

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