Joint Scheduling and Beamforming for Energy Efficiency Maximization in Downlink Coordinated Multi-Cell Networks

被引：1

作者：

Tong, Zhao ^{[1
]}

Li, Bingbing ^{[1
]}

Hui, Yongtao ^{[1
]}

机构：

[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian, Peoples R China

来源：

WIRELESS PERSONAL COMMUNICATIONS | 2015年 / 85卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Energy efficiency; Coordinated scheduling; Beamforming optimization; Superlinear convergence; RESOURCE-ALLOCATION;

D O I：

10.1007/s11277-015-2843-y

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Green communication attracts more and more attention and energy efficiency is becoming an important performance evaluation for the future generations of wireless networks. This paper aims to investigate the optimal energy-efficient design for downlink multi-cell multi-antenna OFDMA environment with coordinated scheduling and beamforming. We target at maximizing the energy efficiency of the whole network subject to the power constraint for each base station and the maximum co-channel interference limitation. At the solving stage, we propose an improved binary search approach (IBSA) which is superlinear convergent and can provide explicit optimal range at every iteration. A joint scheduling and beamforming algorithm is further developed to solve the secondary problem embedded in each iteration of IBSA. Simulation results demonstrate that the proposed algorithm has fast convergent rate and achieves significant performance gain in energy efficiency for cellular network.

引用

页码：1333 / 1350

页数：18

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