Power Minimization with Rate Constraint in Downlink Multi-cell Cooperative MIMO Systems

被引:0
|
作者
Fu, Ting [1 ]
Cui, Qimei [1 ]
Liu, Yinjun [1 ]
Dowhuszko, Alexis Alfredo [2 ]
Hamalainen, Jyri [2 ]
机构
[1] Beijing Univ Posts & Telecommun, Key Lab Universal Wireless Commun, Beijing, Peoples R China
[2] Aalto Univ, Dept Commun & Networking Comet, FIN-00076 Aalto, Finland
基金
中国国家自然科学基金; 美国国家科学基金会;
关键词
D O I
暂无
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
Green radio has attracted much attention currently, and among the many factors to be considered, power consumption reduction is of great significance. In this paper, we consider a power minimization problem with rate requirement and power constraints for downlink multi-cell cooperative MIMO (Co-MIMO) systems. A transmit signal covariance design scheme is proposed, and an integrated algorithm is developed to search the optimal covariance for power minimization. Numerical simulations verify the optimality of our proposed transmit signal covariance scheme. A significant performance gain is observed over the uniform power allocation (UPA) and the noncooperative geometric mean decomposition (GMD)-based schemes.
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页数:5
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