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.
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)
