计算机应用研究2024，Vol.41Issue(7)：2173-2178,6.DOI:10.19734/j.issn.1001-3695.2023.12.0593
基于联盟链的边缘缓存系统中最佳缓存策略设计
Design of optimal caching strategy in edge caching system based on consortium chain
摘要
Abstract
To solve the problem that the edge devices deployed by different operators have huge investment and the cached contents are isolated and have difficulty in sharing information,this paper improved the architecture of an edge cache system based on consortium chain,so that the edge devices deployed by different operators could break the content isolation and achieve a wider range of content sharing.In order to improve the operator cache revenue while ensuring the user transmission quality and reducing the user transmission delay,this paper firstly analyzed the impact of different content delivery methods on user transmission delay and operator caching benefits in terms of cache popularity,content size,and edge device collaboration capabilities.Then,it established an optimization problem with the goal of maximizing the cache benefit and minimizing the transmission delay.Finally,to solve the proposed high-dimensional large-scale caching decision problem,it used asynchronous advantage actor-critic(A3C)based content caching algorithm to determine optimal placement of content.Simulation results show that the proposed cache strategy can effectively enhance the revenue of edge caching,reduce the delay of content delivery and improve the user experience.关键词
边缘缓存/区块链/智能合约/协作缓存/深度强化学习Key words
edge cache/block chain/smart contract/cooperative caching/deep reinforcement learning分类
信息技术与安全科学引用本文复制引用
刘锰,姜静,杜剑波,张雪薇..基于联盟链的边缘缓存系统中最佳缓存策略设计[J].计算机应用研究,2024,41(7):2173-2178,6.基金项目
国家自然科学基金资助项目(61871321,61901370) （61871321,61901370）
陕西省国际科技合作项目重点计划资助项目(2023-GHZD-37) （2023-GHZD-37）
陕西省重点产业链资助项目(2023-ZDLGY-49) （2023-ZDLGY-49）
