自适应有源天线垂直扇区化方法研究  

Adaptive vertical sectorization in active antenna systems

作　　者：张新越 杨阳 谭国平 李岳衡 李旭杰 ZHANG Xin-yue;YANG Yang;TAN Guo-ping;LI Yue-heng;LI Xu-jie(Institute of Communication and Information Systems,Hohai University,Nanjing 211100,China)

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,江苏南京211100

出　　处：《电子设计工程》2018年第9期132-138,共7页Electronic Design Engineering

基　　金：中国科学院无线传感网与通信重点实验室开放课题(2016001);中央高校基本科研业务费(2015B18914);科技部国际科技合作项目(2015DFR10560)

摘　　要：有源天线通过引入垂直扇区化技术,将扇区在垂直方向上进行分裂,由于分裂后波束的增加对内、外扇区之间以及邻小区存在严重干扰,使得基于传统固定分配各天线参数的方法对系统吞吐量的提升十分有限。针对该问题,通过在垂直分裂中引入基于聚类思想的用户分簇方法,提出了一种基于信道增益的自适应有源天线垂直扇区化方法。该方法通过将波束对准中心用户,显著减少对邻扇区的干扰。与传统分配方案相比,本方案中的用户平均吞吐量提高了约10%。The introduction of vertical sectorization technology in active antenna systems makes the sectors splitting in the vertical direction. Due to the increase of beams in the splitting,there is a serious interference between inner and outer sectors and adjacent cells. The traditional fixed allocation method for antenna parameters limits the promotion of system throughput. To solve this problem,a channel-gainbased adaptive vertical sectorization method in active antenna systems is proposed. This method introduces the user clustering idea in vertical sector splitting. The scheme decreases the adjacent cell interference through putting beams directed at the center users,and the average user throughput increases by about 10% compared with the traditional allocation scheme.

关 键 词：有源天线 天线下倾角 垂直小区分裂 聚类方法 

分 类 号：TN929.53[电子电信—通信与信息系统]