An improved scheme on a linear pre-coding method of multi-user MIMO downlink systems

被引:0
|
作者
Meng, Yinkuo [1 ]
Yin, Qinye [1 ]
Ding, Le [1 ]
机构
[1] Xian Jiaotong Univ, Sch Elect & Informat Engn, Xian 710049, Peoples R China
关键词
MIMO; multi-user; downlink; linear precoding; power allocation;
D O I
10.1093/ietcom/e90-b.3.681
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
An improved signal-to-jamming and noise ratio (SJNR) method is proposed for the linear precoding of multiuser MIMO downlink systems. To well balance suppression of co-channel interference and suppression of noise, the proposed method modifies the noise variance term to argument of a piecewise linear function, and then enhances the suppression of noise. A dynamic power allocation scheme is also introduced to further decrease the overall average bit error rate of the system. Simulation results prove the effectiveness of the proposed scheme.
引用
收藏
页码:681 / 684
页数:4
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