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基于速度触发的提前切换算法在LTE-R中的应用研究

米根锁 马硕梅

米根锁, 马硕梅. 基于速度触发的提前切换算法在LTE-R中的应用研究[J]. 电子与信息学报, 2015, 37(12): 2852-2857. doi: 10.11999/JEIT150577
引用本文: 米根锁, 马硕梅. 基于速度触发的提前切换算法在LTE-R中的应用研究[J]. 电子与信息学报, 2015, 37(12): 2852-2857. doi: 10.11999/JEIT150577
Mi Gen-suo, Ma Shuo-mei. Advance Trigger Handover Algorithm Based on the Speed in LTE-R[J]. Journal of Electronics & Information Technology, 2015, 37(12): 2852-2857. doi: 10.11999/JEIT150577
Citation: Mi Gen-suo, Ma Shuo-mei. Advance Trigger Handover Algorithm Based on the Speed in LTE-R[J]. Journal of Electronics & Information Technology, 2015, 37(12): 2852-2857. doi: 10.11999/JEIT150577

基于速度触发的提前切换算法在LTE-R中的应用研究

doi: 10.11999/JEIT150577
基金项目: 

甘肃省自然科学基金(1310RJZA046)

Advance Trigger Handover Algorithm Based on the Speed in LTE-R

Funds: 

The Natural Science Foundation of Gausu Province (1310RJZA046)

  • 摘要: 随着高铁的快速发展,铁路移动通信系统对切换时延、切换成功率等要求更为苛刻。该文针对铁路长期演进(LTE-R)系统提出基于速度触发的提前切换算法,通过提前进行信令交互、设置切换预承载点切换的方式抑制过早或过迟切换所带来的通信中断、掉话等问题。通过信令流程图进行理论分析,并对长期演进(LTE)各结构类型数据计算可知,该算法均可缩短切换时延,其中TDD帧结构类型2时效果最为显著。最后通过仿真对比得到提前切换算法相比传统切换算法有着更高且更稳定的切换成功率,验证算法的有效性,为LTE-R在未来铁路专网的应用提供技术支持。
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出版历程
  • 收稿日期:  2015-05-15
  • 修回日期:  2015-08-28
  • 刊出日期:  2015-12-19

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