ENERGY-EFFICIENT COORDINATED BEAMFORMING IN DOWNLINK OFDMA CELLULAR NETWORKS

被引：0
|
作者：
Venturino, Luca [1 ]
Buzzi, Stefano [1 ]
机构：
[1] Univ Cassino & Lazio Meridionale, Dept Elect & Informat Engn, I-03043 Cassino, Italy
来源：
2014 IEEE WORKSHOP ON STATISTICAL SIGNAL PROCESSING (SSP) | 2014年
关键词：
Cellular network; base station coordination; OFDMA; downlink; beamforming; energy efficiency; RESOURCE-ALLOCATION; SCHEMES;
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：
This work addresses the problem of coordinated beamforming in the downlink of an OFDMA cellular network. The figure of merit to be optimized is the global energy efficiency, defined as the ratio between the sum-rate of the coordinated base stations and the corresponding power consumption, under a per-base-station power constraint. The Karush-Kuhn-Tucker (KKT) conditions of the considered optimization problem are first derived to gain insights into the structure of the optimal beamformers. Then, a suboptimal design procedure based on the KKT conditions is proposed and analyzed.
引用
收藏
页码：492 / 495
页数：4
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