Optimal Joint Water-Filling for Coordinated Transmission over Frequency-Selective Fading Channels

被引：27
|
作者：
Luo, Bing [1 ]
Cui, Qimei [1 ]
Wang, Hui [1 ]
Tao, Xiaofeng [1 ]
机构：
[1] BUPT, WTI Inst, Beijing 100876, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2011年 / 15卷 / 02期
关键词：
Power allocation; coordinated multiple point transmission (CoMP); block-fading; water-filling (WF);
D O I：
10.1109/LCOMM.2011.122010.101392
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
we consider a novel power allocation scheme for a frequency-selective fading channel with two coordinated transmission points (CTP) transmission. In order to maximize the channel's throughput, closed form solutions are obtained by solving a non-convex constrained optimization problem. The solution which we name it joint water-filling (Jo-WF) turns out to take the form of traditional WF and also combined with regular cooperative feature. Numerical results are presented to verify the optimality of the derived scheme and to show throughput gains over traditional non-coordinated WF and equal power allocation (EPA).
引用
收藏
页码：190 / 192
页数：3
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