There are a lot of performance studies concerning WCDMA radio interface in terms of its capacity and coverage.This article gathers the most important issues related to this topic and indicates areas where the analytic...There are a lot of performance studies concerning WCDMA radio interface in terms of its capacity and coverage.This article gathers the most important issues related to this topic and indicates areas where the analytical as well as simulation-based(both static and dynamic) approach should be applied.The presented considerations address issues of the network environment modeling and parameters assumption with relevance to the network planning and optimization process.Both uplink and downlink are included in the analysis,taking introduced limitations into consideration.Some results of performance tests based on static simulations are presented.展开更多
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...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.展开更多
文摘There are a lot of performance studies concerning WCDMA radio interface in terms of its capacity and coverage.This article gathers the most important issues related to this topic and indicates areas where the analytical as well as simulation-based(both static and dynamic) approach should be applied.The presented considerations address issues of the network environment modeling and parameters assumption with relevance to the network planning and optimization process.Both uplink and downlink are included in the analysis,taking introduced limitations into consideration.Some results of performance tests based on static simulations are presented.
基金supported by National 863 Program(2014AA01A702)National Major Project(2013ZX03001032-004)+1 种基金National Natural Science Foundation(61221002 and 61201170)the Fundamental Research Funds for the Central Universities(CXLX13 093)
文摘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.
