Improving the capacity of limited feedback beamforming in distributed MIMO systems

被引：0
|
作者：
Zeng, Erlin [1 ]
Zhu, Shihua [1 ]
Zhong, Zhimeng [1 ]
Feng, Zhenjie [1 ]
机构：
[1] Xian Jiaotong Univ, Dept Informat & Commun Engn, Xian, Peoples R China
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2008年 / E91B卷 / 06期
关键词：
beamforming; limited feedback; distributed antenna systems (DAS); multiple-input multiple-output (MIMO);
D O I：
10.1093/ietcom/e91-b.6.2063
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this letter, we analyze the performance of limited feedback beamforming in a distributed antenna system. We propose a novel codebook design scheme to maximize a lower bound of the averaged effective signal-to-noise ratio (SNR), which is a function of the power of the signal and noise, the number of antennas, and the number of total feedback bits for characterizing the quantized channel vector. Simulations verify that the proposed scheme can provide effective capacity improvement.
引用
收藏
页码：2063 / 2066
页数：4
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