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基于SideLink的LTE-V2X联合切换方案设计

申滨 周晓勇 徐浪 黄晓舸

申滨, 周晓勇, 徐浪, 黄晓舸. 基于SideLink的LTE-V2X联合切换方案设计[J]. 电子与信息学报, 2020, 42(2): 511-518. doi: 10.11999/JEIT190120
引用本文: 申滨, 周晓勇, 徐浪, 黄晓舸. 基于SideLink的LTE-V2X联合切换方案设计[J]. 电子与信息学报, 2020, 42(2): 511-518. doi: 10.11999/JEIT190120
Bin SHEN, Xiaoyong ZHOU, Lang XU, Xiaoge HUANG. A SideLink-assisted Joint Handover Scheme for Long Term Evolution -Vehicle to Everything System[J]. Journal of Electronics and Information Technology, 2020, 42(2): 511-518. doi: 10.11999/JEIT190120
Citation: Bin SHEN, Xiaoyong ZHOU, Lang XU, Xiaoge HUANG. A SideLink-assisted Joint Handover Scheme for Long Term Evolution -Vehicle to Everything System[J]. Journal of Electronics and Information Technology, 2020, 42(2): 511-518. doi: 10.11999/JEIT190120

基于SideLink的LTE-V2X联合切换方案设计

doi: 10.11999/JEIT190120
基金项目: 国家自然科学基金(61571073)
详细信息
    作者简介:

    申滨:男,1978年生,教授,研究方向为大规模MIMO系统、认知无线电等

    周晓勇:女,1994年生,硕士生,研究方向为LTE-V2X关键技术研究

    徐浪:男,1993年生,硕士生,研究方向为异构网络融合

    黄晓舸:女,1982年生,副教授,主要研究方向为无线通信、移动通信系统5G前沿技术

    通讯作者:

    申滨 shenbin@cqupt.edu.cn

  • 中图分类号: TN929.5

A SideLink-assisted Joint Handover Scheme for Long Term Evolution -Vehicle to Everything System

Funds: The National Nature Science Foundation of China (61571073)
  • 摘要:

    在LTE-V2X系统中,针对车载用户切换过程中蜂窝链路及SideLink(SL)链路质量不高以及SL辅助切换过程中SL链路易中断的问题,该文提出一种基于SL的联合切换方案,主要包含:联合切换流程设计、联合切换信令流程设计以及联合切换判决算法设计。首先,在联合切换流程中利用SL技术实现联合切换,并对执行联合切换的SL链路质量进行筛选,以保证联合切换的可靠性;其次,对联合切换信令流程进行了完善,以优化SL辅助切换过程中SL链路易中断问题;最后,在联合切换判决算法中将车载用户的移动方向纳入切换判决条件,从而减少不必要的切换。仿真结果显示,该文所提方案能有效提升切换成功率,与此同时还能有效减少执行LTE切换的次数。

  • 图  1  SL与蜂窝链接相互干扰场景

    图  2  SL辅助切换场景

    图  3  车载用户移动模型

    图  4  第1类信令流程

    图  5  第2类信令流程

    图  6  仿真场景

    图  7  切换成功率

    图  8  SL联合切换方案之切换成功率

    图  9  执行LTE切换次数(500车载用户场景)

    图  10  执行LTE切换次数(100车载用户场景)

    图  11  RLF性能

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出版历程
  • 收稿日期:  2019-02-27
  • 修回日期:  2019-12-08
  • 网络出版日期:  2019-12-10
  • 刊出日期:  2020-02-19

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