User Selection Schemes for MIMO Broadcast Channels with Limited Feedback

被引：54

作者：

Trivellato, Matteo ^{[1
]}

Boccardi, Federico ^{[2
]}

Tosato, Filippo ^{[3
]}

机构：

[1] Univ Padua, Dept Informat Engn, Via Gradenigo 6-B, I-35131 Padua, Italy

[2] Alcatel Lucent, Bell Labs, Swindon SN5 7DJ, Wilts, England

[3] Philips Res Labs, Redhill RH15HA, Surrey, England

来源：

2007 IEEE 65TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2007年

关键词：

D O I：

10.1109/VETECS.2007.432

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：

We propose a user selection algorithm and the supporting feedback scheme, for MIMO Gaussian broadcast channels with arbitrary number of users, transmit beamforming and limited channel state information (CSI) available at the transmitter. The method relies on estimation of the user signal-to-interference-plus-noise ratios (SINR's) at the transmitter, by means of an appropriate finite-rate channel report from the mobiles. The basic principle is that users are added successively only if they are beneficial to the system in terms of increased throughput. Numerical results show improved performance compared to other finite-rate feedback schemes.

引用

页码：2089 / +

页数：2