内容新鲜度保障的车联网多智能体缓存分发策略
Multi-agent caching distribution strategy for content freshness guarantee in IoV
摘要
Abstract
Vehicles need to dynamically changing content to support latency-sensitive applications in Internet of vehicles(IoV),thereby increasing the load on the macro base station(MBS)and reducing the freshness of content.Utilizing edge caching to cache the latest content in small base station(SBS)can effectively reduce the latency and improve the content freshness.An in-depth analysis was conducted on latency and content's age of information(AoI).A content freshness as-surance multi-agent reinforcement learning(MARL)algorithm was proposed,which optimized cache distribution deci-sions to guarantee high freshness.Simulation results show that the proposed algorithm not only converges faster but also demonstrates better performance in reducing latency and enhancing content freshness.关键词
车联网/边缘缓存/信息年龄/多智能体强化学习Key words
Internet of vehicles/edge caching/age of information/multi-agent reinforcement learning分类
电子信息工程引用本文复制引用
崔亚平,石宏吉,吴大鹏,何鹏,王汝言..内容新鲜度保障的车联网多智能体缓存分发策略[J].通信学报,2025,46(1):52-66,15.基金项目
国家自然科学基金资助项目(No.61801065,No.62271096,No.61871062,No.U20A20157,No.62061007) （No.61801065,No.62271096,No.61871062,No.U20A20157,No.62061007）
重庆市教委科学技术研究基金资助项目(No.KJQN202000603,No.KJQN202300621) （No.KJQN202000603,No.KJQN202300621）
重庆市自然科学基金资助项目(No.CSTB2022NSCQ-MSX0468,No.cstc2020jcyjzdxmX0024,No.cstc2021jcyjmsxmX0892,No.CSTB2023NSCQ-LZX0134) （No.CSTB2022NSCQ-MSX0468,No.cstc2020jcyjzdxmX0024,No.cstc2021jcyjmsxmX0892,No.CSTB2023NSCQ-LZX0134）
重庆市高校创新研究群体基金资助项目(No.CXQT20017) （No.CXQT20017）
重邮信通青创团队支持计划基金资助项目(No.SCIE-QN-2022-04) （No.SCIE-QN-2022-04）
四川省重点研发计划基金资助项目(No.2024YFHZ0093) The National Natural Science Foundation of China(No.61801065,No.62271096,No.61871062,No.U20A20157,No.62061007),The Science and Technology Research Program of Chongqing Municipal Education Commission(No.KJQN202000603,No.KJQN202300621),The Natural Science Foundation of Chongqing(No.CSTB2022NSCQ-MSX0468,No.cstc2020jcyjzdxmX0024,No.cstc2021jcyjmsxmX0892,No.CSTB2023NSCQ-LZX0134),The University Innovation Research Group of Chongqing(No.CxQT20017),The Youth Innovation Group Support Program of ICE Discipline of CQUPT(No.SCIE-QN-2022-04),The Key Re-search and Development Program of Sichuan Province(No.2024YFHZ0093) （No.2024YFHZ0093）
