电子学报 ›› 2020, Vol. 48 ›› Issue (10): 1943-1951.DOI: 10.3969/j.issn.0372-2112.2020.10.011

• 学术论文 • 上一篇    下一篇

基于干扰贡献比的密集异构网络小小区开关算法

申滨, 闫伟, 雷珍珠, 刘笑笑   

  1. 重庆邮电大学通信与信息工程学院, 重庆 400065
  • 收稿日期:2019-04-15 修回日期:2020-06-29 出版日期:2020-10-25 发布日期:2020-10-25
  • 作者简介:申滨 男,1978年1月出生,贵州兴义人.教授,博士,研究方向为信号处理、MIMO系统和认知无线电.E-mail:shenbin@cqupt.edu.cn
    闫伟 男,1993年9月出生,河北沧州人.现为重庆邮电大学硕士生,研究方向为密集异构网络、移动边缘计算.E-mail:1083279886@qq.com
  • 基金资助:
    国家自然科学基金(No.61571073)

An Interference Contribution Rate Based SeNB Switching on/off Algorithm for Dense Heterogeneous Networks

SHEN Bin, YAN Wei, LEI Zhen-zhu, LIU Xiao-xiao   

  1. School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
  • Received:2019-04-15 Revised:2020-06-29 Online:2020-10-25 Published:2020-10-25

摘要: 小小区密集部署的异构网络是5G系统提升网络容量与数据速率的最有效的关键技术之一.随着小小区的大量部署,小小区之间的同频干扰以及小小区基站(Small Cell Base Stations,SeNBs)的能耗问题愈发显著.为提高SeNBs能效并降低小小区间的同频干扰,提出一种基于干扰贡献比(Interference Contribution Ratio,ICR)的小小区开关算法,可以仅通过较少的用户设备(User Equipment,UE)信息反馈量与测量过程实现有效的小小区开关操作.仿真表明,所提算法在保持较低的小小区业务损失量的前提下,能有效地降低小小区之间的同频干扰,提高网络总速率与SeNBs能效.

关键词: 异构网络, 小小区开关, 能效, 干扰贡献比

Abstract: Dense heterogeneous networks (DenseHetNets) is one of the most promising technologies to enhance the 5G network capacity.However,with a large number of small cells,the problem of co-channel interference and energy efficiency of small cell base stations (SeNBs) becomes more and more severe.In order to improve the power efficiency and alleviate the co-channel interference,small cells need to be switched on or off accordingly.This paper proposes a SeNB switching on/off algorithm based on the interference contribution rates of the small cells that involve less signaling information in the procedure of switching on/off operation and require less computational complexity under the dense HetNet environment.Simulation results show that the algorithm proposed in this paper can effectively reduce the co-channel interference of small cells and improve the total network rate,at the same time,maintain a lower loss rate of load in small cells.

Key words: HetNets, small cell on/off, energy efficiency, interference contribution ratio

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