Coverage Optimization of LTE Networks Based on Antenna Tilt Adjusting Considering Network Load  

作　　者：NhuQuan Phan ThiOanh Bui Huilin Jiang Pei Li Zhiwen Pan Nan Liu 

机构地区：[1]National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,Jiangsu,China [2]Faculty of Mechatronics-Electronics,Lac Hong University,Bien Hoa City 810000,Viet Nam [3]Institute of electrical engineering,Nanjing Xiaozhuang University,Nanjing 211171,China

出　　处：《China Communications》2017年第5期48-58,共11页中国通信（英文版）

基　　金：supported by National 863 Program(2014AA01A702);National Major Project(2013ZX03001032-004);National Natural Science Foundation(61221002 and 61201170);the Fundamental Research Funds for the Central Universities(CXLX13 093)

摘　　要：In this paper,we investigate the coverage optimization for LTE networks considering the network load. The network coverage is defined as the number of served users of evolved Node B(eNB)which is determined by e NBs' antenna tilt angles(ATA). The coverage is optimized by optimizing the number of served users based on the Modified Particle Swarm Optimization(MPSO)algorithm. Simulation results show that both the number of served users by each e NB and the system throughput are significantly increased. As well,the average load and the bandwidth efficiency of the network are improved.In this paper, we investigate the coverage optimization for LTE networks considering the network load. The network coverage is defined as the number of served users of evolved Node B （eNB） which is determined by eNBs＇ antenna tilt angles （ATA）. The coverage is optimized by optimizing the number of served users based on the Modified Particle Swarm Optimization （MPSO） algorithm. Simulation results show that both the number of served users by each eNB and the system throughput are significantly increased. As well, the average load and the bandwidth efficiency of the network are improved.

关 键 词：LTE networks antenna tilt angle coverage optimization and modified particle swarm optimization 

分 类 号：TN929.5[电子电信—通信与信息系统]