Sum-rate analysis of MIMO broadcast channel with random unitary beamforming

被引：0
|
作者：
Lu, Peng [1 ,2 ]
Yang, Hong-Chuan [1 ,3 ]
Ko, Young-Chai [3 ]
机构：
[1] Univ Victoria, Dept Elect & Comp Engn, Victoria, BC V8W 3P6, Canada
[2] Inc, Res Mot, Toronto, ON, Canada
[3] Korea Univ, Sch Elect Engn, Seoul, South Korea
来源：
WCNC 2008: IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-7 | 2008年
关键词：
MIMO broadcast channel; random unitary beam forming; multiuser diversity; sum-rate analysis; wireless communications;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we present the exact sum-rate analysis of the multiuser MIMO system with random unitary beamforming (RUB). Specifically, with the derived statistics of ordered beam signal to interference and noise ratio, we obtain the analytical expression of system sum rate for arbitrary number of users. The effects of system parameters, including the number of users, the number of transmit antennas and the signal to noise ratio (SNR), on the sum rate are examined through numerical methods. Besides, we develop an upper bound for the sum rate, which reveals that the sum rate with RUB benefits mainly from multiuser directional diversity gain when SNR is high.
引用
收藏
页码：533 / +
页数：2
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