接收矢量估计辅助的协调波束赋形算法

doi:10.3969/j.issn.1000-436x.2014.02.024

Abstract

Abstract:

A distributed coordinated beamforming optimization scheme with the assistance of receive beamformer esti-mation was proposed for downlink cellular wireless communication systems. By sharing a small amount of information among cooperated base stations(BSs), the proposed algorithm estimates the receive vectors of related users at the BSs based on MVDR criterion, which are then utilized to optimize the design of transmit beamforming vectors. The simula-tion results and analysis show that the proposed distributed scheme can achieve the performance close to that in the cen-tralized scheme with lower overhead and complexity. In addition, a simplified scheme was also proposed which further reduces the system overhead.

Key words: SLNR, receive beamforming vector estimation, coordinated beamforming, distributed

Ying HUANG,Gang-ming LV,Shi-hua ZHU. Coordinated beamforming algorithm assisted by receive beamforming vector estimation[J]. Journal on Communications, 2014, 35(2): 194-201.

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References 15

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算法	信息共享总量
JTR-CB方案	(M-1)MN_r N_t+(M-1)N_t
MVDR估计	2M(M-1)N_r
准MVDR估计	M(M-1)N_r
T-SLNR方案/ZF方案	0

算法	矩阵求逆次数
JTR-CB方案	MN
MVDR估计	1
准MVDR估计	M-1
T-SLNR方案/ZF方案	0

Coordinated beamforming algorithm assisted by receive beamforming vector estimation

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