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[1]苏孙庆,裴文龙,舒强,等.相关信道下基于功率分配的MIMO系统容量分析[J].集美大学学报(自然科学版),2019,24(1):76-80.
　SU Sunqing,PEI Wenlong,SHU Qiang,et al.Capacity Analysis of MIMO System Based on Power Distribution over Correlated Channel[J].Journal of Jimei University,2019,24(1):76-80.
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《集美大学学报（自然科学版）》[ISSN:1007-7405/CN:35-1186/N]

卷:
第24卷
期数:
2019年第1期
页码:
76-80
栏目:
数理科学与信息工程
出版日期:
2019-01-28

文章信息/Info

Title:
Capacity Analysis of MIMO System Based on Power Distribution over Correlated Channel
作者:
苏孙庆1; 裴文龙1; 舒强1; 蔡宏浩1; 雷国伟1; 2
（1.集美大学理学院，福建 厦门 361021；2.北京邮电大学电子工程学院，北京 100876）
Author(s):
SU Sunqing1; PEI Wenlong1; SHU Qiang1; CAI Honghao1; LEI Guowei1; 2
(1.School of Science,Jimei University,Xiamen 361021,China;2.School of Electronic Engineering,Beijing University of Posts & Telecommunications,Beijing 100876,China)
关键词:
MIMO; 信道容量; 注水算法; 相关系数
Keywords:
MIMO; channel capacity; water-filling algorithm; correlation coefficient
分类号:
-
DOI:
-
文献标志码:
A
摘要:
采用信道矩阵的分解、奇异值扩展等方法，从天线上的功率分配与信道的相关性这两个角度分析多输入多输出（MIMO）系统信道的相关性和容量。通过仿真分析，发现不同的天线相关程度和功率分配算法的作用是不同的。注水算法能在一定程度上弥补信道相关性所带来的容量损失。而且，当信噪比增大到一定程度时，注水算法的效果越来越接近平均分配算法。
Abstract:
In this paper,the capacity of MIMO systems is discussed in terms of both power distribution and channel correlation.The channel correlation and capacity are analyzed by using matrix decomposition and singular value spread.It is found via simulation that,power distribution plays different role according to correlation or not,and the degree of correlation.And water-filling algorithm can offset the loss caused by channel correlation.Meanwhile,it is found that the effect of water-filling algorithm is close to average distribution algorithm as the signal to noise ratio (SNR) grows to an extent.

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更新日期/Last Update: 2019-03-10