Limited feedback precoding scheme for downlink multiuser MIMO systems

被引：2
|
作者：
Zheng, Haibo [1 ]
Wu, Yongle [1 ]
Li, Yunzhou [1 ]
Zhou, Shidong [1 ]
Wang, Jing [1 ]
机构：
[1] Tsinghua Univ, Natl Lab Informat Sci & Technol, Beijing 100084, Peoples R China
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2007年 / E90B卷 / 03期
关键词：
limited feedback; multiuser MIMO; grassmannian beamforming; user selection;
D O I：
10.1093/ietcom/e90-b.3.689
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 propose a limited feedback precoding scheme based upon grassmannian beamforming and user selection for downlink multiuser MIMO systems. Conventional random beamforming scheme only enjoys significant performance gains with a large number of users, which limits its practical application. With proper codebook size the proposed scheme outperforms conventional random beamforming scheme when the number of users is small or moderate.
引用
收藏
页码：689 / 692
页数：4
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