移动边缘计算中基于视频内容协作分发的联合激励机制  

Joint incentive mechanism based on video content cooperative delivery in mobile edge computing

作　　者：刘伟[1,2,3] 张涛 Liu Wei;Zhang Tao(College of Computer Science&Technology,Wuhan University of Technology,Wuhan 430070,China;Hubei Key Laboratory of Transportation Internet of Things,Wuhan 430070,China;The Key Laboratory of Embedded System&Service Computing Ministry of Education(Tongji University),Shanghai 201804,China)

机构地区：[1]武汉理工大学计算机科学与技术学院,武汉430070 [2]交通物联网技术湖北重点实验室,武汉430070 [3]同济大学嵌入式系统与服务计算教育部重点实验室,上海201804

出　　处：《计算机应用研究》2021年第9期2803-2810,共8页Application Research of Computers

基　　金：湖北省自然科学基金面上项目(2020CFB749);同济大学嵌入式系统与服务计算教育部重点实验室开放基金资助项目(ESSCKF2018-05);计算机体系结构国家重点实验室开放课题(CARCHB202015)。

摘　　要：随着智能设备存储和传输能力的提升,用户可通过设备—设备连接共享视频服务,在移动边缘网络中实现视频内容协作分发。然而,现有架构缺少合适的激励机制解决中继传输节点经济收益受损和本地数据泄露问题。针对视频内容边缘协作分发系统存在的问题,提出适用于多码率编码视频的联合安全和经济激励机制,并对该机制的差分隐私性、近似诚实性和个体理性进行了理论上的证明。最后由实验数据表明,该机制能有效保护参与用户的个体利益,提高视频服务总体效益。With the rapid growth of storage and transmission capabilities smart devices,streaming users can share video ser-vices through device-to-device(D2D)communications to achieve video content cooperative delivery in mobile edge computing.However,existing architectures lack suitable incentive mechanisms to solve the problem of economic loss and local data lea-kage of relay transmission nodes.Aiming at the problems existing in video content cooperative delivery system,this paper proposed a joint security and benefit incentive mechanism for multi-bitrate encoding video.And it gave a proof to show that the method satisfied differential privacy,approximate honesty and individual rational.Finally,experimental results show that the mechanism cannot only protect the individual interests of users,but also improve the overall benefits of video services.

关 键 词：移动边缘计算 视频内容协作分发 激励机制 差分隐私 反向拍卖 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]