Long-term transmit beamforming for wireless multicasting

被引：0
|
作者：
Lozano, Angel [1 ]
机构：
[1] Bell Labs Lucent Technol, Holmdel, NJ 07733 USA
来源：
2007 IEEE International Conference on Acoustics, Speech, and Signal Processing, Vol III, Pts 1-3, Proceedings | 2007年
关键词：
array signal processing; adaptive arrays; beam steering; multicast channels; mobile communication;
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
This paper presents a low-complexity iterative algorithm for long-term transmit beamforming in multicast channels. Since it relies only on antenna correlations at the base station, the algorithm requires only infrequent feedback from the users. Multiantenna receivers are not required, but they are transparently accommodated. Simulation results within the context of the UMTS long-term evolution system indicate that, with half-wavelength antenna spacings and a typical power azimuth spectrum, the performance is close to optimal. The specific gains (in average SINR) then depend on the number of transmit antennas and the number of active users.
引用
收藏
页码：417 / 420
页数：4
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