一种新的基于3D有源天线组网的干扰协调方案  

A novel interference coordination scheme for 3D active antenna system based cellular networks

作　　者：张亮[1,2] 杨馨 谭国平 

机构地区：[1]河海大学计算机与信息学院通信与信息系统研究所,江苏南京210098 [2]上海无线通信研究中心,上海200335

出　　处：《电子设计工程》2014年第9期137-141,共5页Electronic Design Engineering

基　　金：国家科技重大专项资助项目(2013ZX03001019);国家自然科学基金资助项目(61001068);教育部博士点基金资助项目(20100094120017)

摘　　要：传统2D有源天线仅能进行水平维的波束调整,而3D有源天线能够结合垂直维的波束调整,提升系统的吞吐量。由于3D有源天线组网的干扰情况与2D完全不同,需要研究新的干扰协调方案,本文提出一种基于3D有源天线组网的干扰协调方案,通过相邻基站间交互各自对系统资源的使用信息,使得基站间可协调分配系统资源,降低了系统整体干扰水平。仿真结果表明,提出的方案可有效地抑制小区间干扰,提升边缘用户的性能乃至整个小区的平均吞吐量。Traditional 2D active antenna system canonly carry on horizontal beam steeringin cellular mobileradiosystems,while the existing 3D active antenna system basedcellularnetworkscan obtain large throughput gain with the use of vertical beam steering.Considering that the interference problem of 3Dcase is absolutely different from 2D case,it is necessary to develop a new interference coordination scheme.In this paper,we propose anovel interference coordination scheme to optimize resource allocation and diminish inter-cell interference level of the systems throughexchanging the usinginformation of frequency resources between adjacent base stations.Simulation results show that the proposed scheme can reduce inter-cell interference effectively and improve the cell edge and average spectrum efficiency.

关 键 词：有源天线系统 垂直维波束调整 干扰协调 小区间干扰 

分 类 号：TN929.53[电子电信—通信与信息系统]