现代电子技术2018，Vol.41Issue(1)：23-27,5.DOI:10.16652/j.issn.1004-373x.2018.01.006
一种EHOPPPA算法改进LTE切换性能的研究
Research on a EHOPPPA algorithm improving handover performance of LTE
摘要
Abstract
As the handover procedure of LTE supports multiple handover preparations,an early handover preparation with ping-pong avoidance(EHOPPPA) algorithm is proposed to successfully re-establish the radio link failed in handover procedure. With the algorithm,the user can receive the target base station′s multiple handover command messages for handover prepara-tion,and the optimal target base station is selected by means of cell. The OPNET simulation results show that the algorithm can reduce the handover failure rate by 60% in handover procedure,and the successful recovery probability of radio link failure (RLF) in handover procedure is nearly 100% without addition of the ping-pong effect. Therefore,the algorithm can improve the successful rate of handover,and its effect is particularly obvious,especially in densely-populated areas.关键词
切换准备/无线链路重建/乒乓效应/小区选择/目标基站/EHOPPPA算法Key words
handover preparation/radio link reestablishment/ping-pong effect/cell selection/target base station/EHOPPPA algorithm分类
信息技术与安全科学引用本文复制引用
徐新飞,李波..一种EHOPPPA算法改进LTE切换性能的研究[J].现代电子技术,2018,41(1):23-27,5.基金项目
陕西省科技统筹创新工程计划项目(2011KTCL01-10)Project Supported by Shaanxi Planned Project of Science and Technology Planning Innovation Engineering(2011KTCL01-10). （2011KTCL01-10）
