电波科学学报2012,Vol.27Issue(3):556-563,582,9.
同信道干扰下相关多输入多输出信道容量分析
Analysis of correlated MIMO channel capacity under co-channel interference
摘要
Abstract
In Rayleigh fading environments,this paper addresses the issue of multiple-input multiple-output(MIMO)channel capacity under co-channel interference,and focuses on the case with transmit spatial correlation for the desired user.It is assumed that perfect channel state information(CSI)is available to the receiver,but unavailable to the transmitter.Based on theory of matrix variate distributions,this paper first derives an exact closed-form expression of the moment generating function(MGF)of mutual information of MIMO channels with interference,and then obtains an exact expression of the MIMO ergodic capacity by using the MGF formula of mutual information.Finally,numerical results are present to illustrate the mathematical formalism and to show the effect of various parameters on the ergodic capacity.This paper emphasizes applications of matrix variate distribution theory to the study of MIMO channel capacity.关键词
多输入多输出/信道容量/同信道干扰/空间相关性/矩阵变量分布Key words
multiple-input multiple-output/channel capacity/co-channel interference/spatial correlation/Matrix variate distribution分类
信息技术与安全科学引用本文复制引用
闫秋娜,岳殿武,王谦..同信道干扰下相关多输入多输出信道容量分析[J].电波科学学报,2012,27(3):556-563,582,9.基金项目
东南大学移动通信国家重点实验室开放研究基金项目 ()
广东省自然科学基金博士启动项目 ()
辽宁省“百千万人才工程”人选项目 ()
国家自然科学基金项目(61171175,61001090)资助 ()