跨域流媒体边缘云资源调整策略  

A resource adjustment strategy for cross domain streaming media edge Cloud

作　　者：江坤 奚宏生[1] Jiang Kun;Xi Hongslieng(School of Information Science and Technology,University of Science and Technology of China,Hefei 230026, Chin)

机构地区：[1]中国科学技术大学信息科学技术学院,安徽合肥230026

出　　处：《微型机与应用》2017年第21期22-25,28,共5页Microcomputer & Its Applications

基　　金：国家自然科学基金(61233003);中央高校研究基金科研业务费专项资金(WK3500000002)

摘　　要：随着云计算技术的成熟,跨域边缘云模式下的流媒体服务正逐渐兴起。但流媒体相关的用户请求随时间波动较大,边缘云需要动态调整需租赁的云资源来同时保证用户服务质量和资源利用率。文中提出的云资源调整策略综合考虑了跨域流媒体边缘云的资源消耗模型、相关用户服务质量指标的量化以及跨域转发用户请求对系统服务的影响,通过系统资源调整阶段和子云资源调整阶段策略的合理协调,在保证用户服务质量的同时节约了系统总体云资源的租赁代价,同时仿真结果表明文中策略能够取得上述优化效果。With the maturity of cloud computing technology,the streaming media services in the cross-domain edge cloud mode are gradually rising. While streaming media-related user requests fluctuate intensely,it is necessary to dynamically adjust the cloud resource leasing scheme.The proposed strategy takes into account the resource consumption model of the cross-domain streaming media edge cloud,the quantization of the relevant user service quality indicators,and the impact of the cross-domain forwarding user request to system to reasonably adjust cloud resource leasing scheme,and to ensure the quality of customer service under the premise of minimizing the overall system rental costs through the system resource adjustment phase and sub-cloud resource adjustment phase. The simulation result shows that the proposed strategy can achieve the above optimization effect.

关 键 词：流媒体边缘云 资源调整 服务质量 租赁代价 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]