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
徐新飞,李波
摘要(Abstract)：
由于LTE切换过程是支持多个切换准备的,针对在切换过程中无线链路失败后重新成功建立这一问题提出一种具有避免乒乓效应并提前准备切换(EHOPPPA)的算法,该算法重点在于用户可以接收到多个准备切换的目标基站的切换命令信息,并且通过小区选择到最佳的目标基站。通过OPNET仿真该算法可以在切换过程中实现切换失败率降低约60%,并且在没有增加乒乓效应的前提下在切换过程中从无线链路失败中成功恢复的概率接近100%。该算法提高了切换成功率,尤其是在人口密集的地方效果更为显著。
关键词(KeyWords)： 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
基金项目(Foundation): 陕西省科技统筹创新工程计划项目(2011KTCL01-10)~~
作者(Author): 徐新飞,李波
DOI: 10.16652/j.issn.1004-373x.2018.01.006
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