Energy-efficient resource allocation in macrocell-smallcell heterogeneous networks

被引：0

作者：

Feng L. ^{[1
]}

Chen Y. ^{[1
]}

Wang X. ^{[1
]}

机构：

[1] School of Computer & Communication Engineering, University of Science and Technology Beijing, Beijing

来源：

Journal of Communications | 2016年 / 11卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Convex optimization; Energy efficiency; Resource allocation; Smallcell;

D O I：

10.12720/jcm.11.5.440-445

中图分类号：

学科分类号：

摘要：

Cellular users in indoor environments have difficulty to enjoy high rate services supplied only by macro base station (MBS) due to the penetration loss. Smallcell, as a complement to Macrocell, provide the enhanced coverage through constituting heterogeneous network (HetNet) with MSBs. HetNet is an effective candidate for green communications. However, the interference in HetNet is still a challenging issue. In this paper, we propose an energy-efficient subchannel and power allocation scheme (called EEmax) for a downlink of Macrocell-Smallcell HetNet. The resource allocation to maximize the Energy Efficiency (EE) for all Smallcell Base Stations (SBSs) is formulated a non-convex optimization problem with the condition of the guaranteed data rate and the cross-tier interference constraint. Through an equivalent transformation, an iterative algorithm and the closed-form solution for the optimal power and resource block allocation are obtained. Simulation results show that the proposed EEmax algorithm ballance the resource efficiency both energy and spectrum efficiency. © 2016 Journal of Communications.

引用

页码：440 / 445

页数：5

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