On capacity optimization for correlated MIMO channels

Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (29): 126-128.

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On capacity optimization for correlated MIMO channels

HE Zhong-tang,XU Ran,XU Su-xiao

Xuzhou Airforce College,Xuzhou,Jiangsu 221000,China

Received:1900-01-01 Revised:1900-01-01 Online:2007-10-11 Published:2007-10-11
Contact: HE Zhong-tang

MIMO信道平均容量优化算法的研究

贺中堂,徐冉,许苏晓

江苏徐州空军学院,江苏徐州 221000

通讯作者: 贺中堂

Abstract

Abstract: This paper studies the capacity of a MIMO system with a correlated fading channel for the two-side antennas.An optimization program using Newton’s method is developed to analyze the interactions among transmit and receive antennas,Simulation shows that the optimization program can give a result which is very close to the Jensen’s up bound and reveal the effect of correlation on capacity depending on SNR.

Key words: MIMO, ergodic channel capacity, water filling, beamforming

摘要： 该文研究MIMO系统收发天线间存在空间相关衰落时信道平均容量的优化算法,利用牛顿迭代法,对发送子空间各特征向量的分配功率进行了优化。仿真结果表明,在各种SNR下,其平均容量接近Jensen’s上界;得出信道相关性对平均容量的影响取决于系统信噪比的结论。

关键词: MIMO, 平均信道容量, 注水算法, 波束成形

HE Zhong-tang,XU Ran,XU Su-xiao. On capacity optimization for correlated MIMO channels[J]. Computer Engineering and Applications, 2007, 43(29): 126-128.

贺中堂,徐冉,许苏晓. MIMO信道平均容量优化算法的研究[J]. 计算机工程与应用, 2007, 43(29): 126-128.

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On capacity optimization for correlated MIMO channels

MIMO信道平均容量优化算法的研究

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