车联网中移动边缘计算的安全高效节能卸载策略  

Secure and energy efficient offloading of mobile edge computing in the Internet of vehicles

作　　者：宋宇波 金星妤 燕锋[3] 胡爱群 SONG Yubo;JING Xingyu;YAN Feng;HU Aiqun(Jiangsu Key Laboratory of Computer Networking Technology,School of Cyber Science and Engineering,Southeast University,Nanjing 211189,China;Purple Mountain Laboratories,Nanjing 211189,China;National Mobile Communications Research Laboratory,School of Information Science and Engineering,Southeast University,Nanjing 211189,China)

机构地区：[1]东南大学网络空间安全学院,江苏省计算机网络技术重点实验室,南京211189 [2]网络通信与安全紫金山实验室,南京211189 [3]东南大学信息科学与工程学院,移动通信国家重点实验室,南京211189

出　　处：《清华大学学报（自然科学版）》2021年第11期1246-1253,共8页Journal of Tsinghua University(Science and Technology)

基　　金：国家重点研发计划项目(2020YFE0200600);江苏省网络与信息安全重点实验室(BM2003201)。

摘　　要：该文针对车联网移动边缘计算环境下,车辆在快速移动和切换时与多个边缘服务器间的任务卸载协商所面临的安全性能和系统能耗问题,提出了一个基于边缘服务器和车载服务器协同工作的任务卸载策略安全协商机制,描述了车辆移动时的安全切换交互协议,讨论了其基于边缘服务器覆盖范围的任务分配协商算法及其约束条件。仿真结果表明:该方案可以有效保证通信时的安全性能,同时其卸载能耗及卸载时间与现有方案相比分别减少了58%和17%。Task offloading negotiations between vehicles and multiple edge servers in mobile edge computing environments of the internet of vehicles have security problems and excessive system energy consumption.This paper presents a security offloading mechanism based on cooperation between the edge server task offload strategy and the vehicle server.The strategy has a secure switching interaction protocol when the vehicle is moving with a task assignment negotiation algorithm and constraints based on the edge server coverage.Simulations show that the scheme effectively guarantees security during communications while reducing the offloading energy consumption by 58%and the offloading time by 17%compared with an existing scheme.

关 键 词：车联网 移动边缘计算 身份验证机制 卸载策略 任务分块 

分 类 号：TN915.08[电子电信—通信与信息系统]