摘要
In order to achieve dynamical optimization of mobility load balancing,we analyze the conflict between mobility load balancing and mobility robustness optimization caused by the improper operation of handover parameters.To this end,a method of Handover Parameters Adjustment for Conflict Avoidance(HPACA)is proposed.Considering the movement of users,HPCAC can dynamically adjust handover range to optimize the mobility load balancing.The movement of users is an important factor of handover,which has a dramatic impact on system performance.The numerical evaluation results show the proposed approach outperforms the existing method in terms of throughput,call blocking ratio,load balancing index,radio link failure ratio,ping-pong handover ratio and call dropping ratio.
In order to achieve dynamical op- timization of mobility load balancing, we analyze the conflict between mobility load balancing and mobility robustness optimiza- tion caused by the improper operation of handover parameters. To this end, a method of Handover Parameters Adjustment for Conflict Avoidance （HPACA） is proposed. Considering the movement of users, HPCAC can dynami- cally adjust handover range to optimize the mobility load balancing. The movement of users is an important factor of handover, which has a dramatic impact on system per- formance. The numerical evaluation results show the proposed approach outperforms the existing method in terms of throughput, call blocking ratio, load balancing index, radio link failure ratio, ping-pong handover ratio and call dropping ratio.
基金
supported by the National Natural Science Foundation of China under Grant No.61071118
the National Basic Research Program of China(973 Program)under Grant No.2012CB316004
Special Fund of Chongqing Key Laboratory(CSTC)
Chongqing Municipal Education Commission’s Science and Technology Research Project under Grant No.KJ111506
