SPATIAL COMPATIBLE USER GROUPING ALGORITHM FOR MULTIUSER MIMO SYSTEMS  

作　　者：Li Lei Niu Zhisheng 

机构地区：[1]Department of Electronic Engineering, Tsinghua University, Beijing 100084, China

出　　处：《Journal of Electronics(China)》2007年第2期257-260,共4页电子科学学刊（英文版）

摘　　要：A spatial compatible user grouping algorithm is proposed to reduce CoChannel Interference (CCI) in Space Division Multiple Access (SDMA) multiuser Multiple Input Multiple Output (MIMO) systems. We evaluate the interferences among users by use of distances between row spaces spanned by users’ channel matrixes, then control frequency sharing according to the compatible user grouping algorithm. Results show that the row space distance algorithm outperforms others because it can fully utilize the information from users’ channel matrixes, especially the matrix structure information. The results also prove that the algorithm based on channel matrix structure analysis is a better candidate for spatial compatibility approximation.A spatial compatible user grouping algorithm is proposed to reduce CoChannel Interference （CCI） in Space Division Multiple Access （SDMA） multiuser Multiple Input Multiple Output （MIMO） systems. We evaluate the interferences among Users by use of distances between row spaces spanned by users＇ channel matrixes, then control frequency sharing according to the compatible user grouping algorithm. Results show that the row space distance algorithm outperforms others because it can fully utilize the information from users＇ channel matrixes, especially the matrix structure information. The results also prove that the algorithm based on channel matrix structure analysis is a better candidate for spatial compatibility approximation.

关 键 词：Multiple Input Multiple Output （MIMO） Space Division Multiple Access （SDMA） Multiuser system Radio resource management 

分 类 号：TN914.5[电子电信—通信与信息系统]