基于访问均衡性核度中心的分布式密集无线网络边缘缓存决策策略  

THE POLICY OF EDGE CACHING IN DISTRIBUTED DENSE WIRELESS NETWORK BASED ON ACCESS EQUALIZATION KERNEL CENTER

作　　者：王蒙蒙 Wang Mengmeng(School of Information Engineering,Binzhou University,Binzhou 256603,Shandong,China;College of Computer Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210000,Jiangsu,China)

机构地区：[1]滨州学院信息工程学院,山东滨州256603 [2]南京航空航天大学计算机科学技术学院,江苏南京210000

出　　处：《计算机应用与软件》2022年第12期132-136,166,共6页Computer Applications and Software

基　　金：国家自然科学基金项目(61672283);滨州学院科研基金项目(BZXYG1801)。

摘　　要：随着5G密集基站的部署,回程网络的能耗和延迟大大影响了用户体验。移动边缘网络缓存技术是解决回程负载、减少网络延迟、提高用户体验的有效途径。然而,边缘缓存网络中内容缓存位置的选择对网络缓存效率有很大的影响。现有算法没有考虑基站节点间的协作及动态的访问变化,因此在满足访问效率方面表现不够理想。基于此,提出一种基于访问均衡性核度中心的缓存决策方案,以提高对用户请求的响应。仿真结果表明,与现有机制相比,该方案在满足用户请求方面具有更好的性能。With the deployment of 5G dense base stations, the energy consumption and delay of the backhaul network greatly affect the user experience. Mobile edge network caching technology is an effective way to solve the backhaul load, reduce the network delay and improve the user experience. However, the selection of content cache location in edge cache network has a great impact on network cache efficiency. The existing algorithms do not consider the cooperation between base station nodes and dynamic access changes, so the performance is not ideal in satisfying access efficiency. Based on this, this paper proposes a cache decision scheme based on access equalization kernel center to improve response to user requests. Simulation results show that compared with the existing mechanism, the scheme has better performance in satisfying user requests.

关 键 词：访问均衡性 核度中心性 边缘缓存 缓存决策 分布式密集无线网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]