2019055-1
专题:移动边缘计算
一种新型卸载方案:基于停泊车辆中继的车载边缘任务卸载方案
董培养
1
,赵军辉
1,2
,邹丹
1
,孙笑科
2
(1. 华东交通大学信息工程学院,江西 南昌 330013;
2. 北京交通大学电子信息工程学院,北京 100044)
摘 要:车载边缘计算(vehicular edge computing,VEC)是一种可实现车联网低时延和高可靠性的关键技术。
VEC 可解决车载终端计算能力不足的问题,同时可减少车联网通信服务时延,避免路边停泊车辆自身大量空
闲资源浪费。提出基于停泊车辆中继的车载任务卸载方案,通过合理部署边缘服务器和引入协作中继技术,
可将车联网通信过程中的时延降低至毫秒级。仿真结果表明,与传统的车与基础设施(vehicle to infrastructure,
V2I)卸载方案相比,基于停泊车辆中继的车载任务卸载方案可将通信时延降低 20%。
关键词:车辆边缘计算;静态中继;卸载方案
中图分类号:TN929.5
文献标识码:A
doi: 10.11959/j.issn.1000−0801.2019055
A new offloading paradigm: vehicular edge task
offloading based on parked vehicles relay
DONG Peiyang
1
, ZHAO Junhui
1,2
, ZOU Dan
1
, SUN Xiaoke
2
1. School of Information Engineering, East China Jiaotong University, Nanchang 330013, China
2. School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China
Abstract: Vehicular edge computing (VEC) is a key technology that can realize low latency and high reliability in
vehicular network. VEC can solve the problem of insufficient computing of vehicle terminals, and reduce the com-
munication service delay of vehicular network, avoiding a large amount of waste of free resources in parked vehicles
on the road. A task offloading scheme based on parked vehicles relay was proposed, which could reduce the delay in
vehicles’ communication process into the millisecond level by rationally deploying the edge server and introducing
the cooperative relay technology. Numerical results indicate that compared to direct V2I offloading model, the com-
munication delay can be reduced by 20% in the parked vehicle relay transmission.
Key words: vehicular edge computing, static relay, offloading scheme
收稿日期:2018−12−20;修回日期:2019−03−08
基金项目:江西省主要学科学术和技术带头人资助计划项目(No.20172BCB22016);江西省重点研发计划项目(No.20171BBE50057);
江西省交通运输厅科技项目(No.2016D0037);江西省高等学校教学改革研究省级课题(NO.JXJG-16-5-7);江西省教育科学“十三五
规划课题(No.17YB056);江西省 2018 年度研究生创新专项资金项目(No.YC2018-S253)
Foundation Items: The Jiangxi Provincial Cultivation Program for Academic and Technical Leaders of Major Subjects (No.20172BCB22016),
The Key Research and Development Project of Jiangxi Province (No.20171BBE50057), The Science and Technology Project of Jiangxi
Provincial Transport Bureau (No.2016D0037), The Provincial Teaching Reform Research Project of Jiangxi Province (No.JXJG-16-5-7),
The Science Education Plan for 13th Five-Year of Jiangxi Province (No.17YB056), The Postgraduate Innovation Project in 2018 o
Jiangxi Province (No.YC2018-S253)