准静态Rician衰落信道中MIMO信道容量分析  

Capacity analysis of MIMO channel over quasi-static Rician fading channels

作　　者：臧国珍[1] 朱爱华[2] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210007 [2]炮兵学院南京分院,江苏南京211132

出　　处：《解放军理工大学学报（自然科学版）》2007年第3期205-210,共6页Journal of PLA University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60472051;60472049)

摘　　要：为明确在Rician衰落环境中MIMO系统的信道容量特性,针对准静态Rician衰落信道在收端己知信道状态信息的条件下,对MIMO系统的信道容量进行了分析。分析表明,MIMO信道容量与收发天线间信道矩阵的相关阵的特征值分布有关。推导了准静态Rician衰落信道中该相关阵任一特征值的概率密度函数,得到了秩不大于2的独立同分布MIMO信道的容量表达式,且具有相对较低的计算复杂度。In order to describe the capacity characteristic of MIMO system in Rician fading channel, the capacity of MIMO system in quasi-static flat Rician fading channels was analyzed with the perfect channel state information. It is shown that the capacity of MIMO channel is relative to the distribution of eigenvalues of the matrix, the correlation matrix of channel matrix between transmitter and the receiver. The probability density function of these eigenvalues was derived, and the capacity expression with low complexity was obtained when the rank of channel matrix is less than three over quasi static independent and identically distributed （i. i. d） Rician fading channel.

关 键 词：信道容量 多输入多输出 Rician衰落 准静态 

分 类 号：TN911.2[电子电信—通信与信息系统]