异构网络下行链路层间协作功率控制算法研究  

A downlink interlayer collaborative power control scheme for heterogeneous network

作　　者：陈婧婧[1] 蒋占军[1] 滕世海[1] 

机构地区：[1]兰州交通大学电子与信息工程学院,甘肃兰州730070

出　　处：《微型机与应用》2017年第13期62-65,共4页Microcomputer & Its Applications

基　　金：国家自然科学基金资助项目(61261014)

摘　　要：为了克服Femtocell网络的大规模部署所带来的干扰问题,采用对Femtocell基站发送功率控制的方法。针对Femtocell网络边缘Macrocell用户所受到的强下行链路跨层干扰,通过比较Femtocell用户和Macrocell用户的信干噪比(SINR)与最小SINR阈值的关系,提出了基于Femtocell用户路径损耗的Femtocell基站发送功率自适应调整算法,从而提高了Macrocell用户的通信质量。通过仿真验证,该方法使得Macrocell用户所受干扰明显降低,整体网络性能得以提升。In order to overcome the interference problem caused by the large-scale deployment of Femtocell network, the method of transmitting power control to Femtocell base station is adopted. As for Macrocell users that around the Femtocell network suffered strong cross-layer downlink interference, through the comparison of the relationship between Femtocell and Macrocell users＇ SINR and the minimum threshold SINR, an adaptive control algorithm for Femtocell base station transmission power based on the Femtocell users path loss is proposed. Thereby the Macrocell users＇ communication quality is improved. Simulation results show that this way can reduce the interference of Macrocell users, and overall network performance can be improved.

关 键 词：FEMTOCELL 下行链路 功率控制 信干噪比 

分 类 号：TN929.5[电子电信—通信与信息系统]