Research on CoMP joint transmission for downlink MU-MIMO in TD-LTE-A

被引：0
|
作者：
Cai, Zhen-Hao [1 ,2 ]
Zhao, Kun [1 ]
Chen, Wen [2 ]
机构：
[1] Alcatel-Lucent Shanghai Bell Limited Company, Shanghai
[2] Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Beijing Youdian Daxue Xuebao/Journal of Beijing University of Posts and Telecommunications | 2015年 / 38卷 / 01期
关键词：
Beamforming; Channel state information; Coordinated multipoint transmission; Generalized eigenmatrix;
D O I：
10.13190/j.jbupt.2015.01.013
中图分类号：
学科分类号：
摘要：
Coordinated multi-point transmission/reception(CoMP) is favored in long term evolution advanced (LTE-A) due to its capability in reducing the inter-cell interference and enhancing the throughput for cell-edge users significantly. Aiming at the downlink precoding matrix design for multi-user multi-point joint transmission, the maximization of the average received signal to interference plus noise ratio (SINR) was formulated as optimization problem. By deriving the regularization matrix pencil with the statistical autocorrelation matrix of the prior channel state information matrix, the noise matrix, the multi-user interference matrix and the joint transmission precoding matrix design problem were further translated into the derivation of generalized eigen matrix. The resulting scheme to design the precoding vector maximizes the user equipment SINR by maximizing the beamforming gain and minimizing the multi-user interference and the inter-strings interference. Simulation confirms that the proposed precoding scheme offers significant throughput enhancement with coordinated beamforming gain, as well as good robustness. ©, 2015, Beijing University of Posts and Telecommunications. All right reserved.
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页码：67 / 70
页数：3
相关论文
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