摘要
对云计算中的视频直播服务器选择问题进行研究。将服务器选择问题归结为一个优化问题,给出优化问题的求解方法;提出一种多阶段调度算法,以应对视频直播服务中观众数量难以提前精确估计的问题。针对提出的算法进行大量仿真实验,实验结果表明,该算法可有效保证视频直播终端用户的用户体验,提高云提供商的所得收益。
A server selection problem in the cloud-based live streaming service was studied.The server selection problem was formulated into an optimization problem and associated solution methodology was provided.A multiphase scheduling algorithm was proposed to address the problem of inexact prediction of live streaming end users.Extensive simulations were conducted to evaluate the effectiveness of the proposed algorithms.Simulation results show that the proposed algorithms can effectively ensure the user experience and improve the revenue of the cloud provider.
出处
《计算机工程与设计》
北大核心
2015年第10期2650-2656,2661,共8页
Computer Engineering and Design
基金
内蒙古自治区科学计划基金项目(20130362)
内蒙古自治区高等学校科学研究基金项目(NJZZ12046
NJZY14064)
内蒙古工业大学科学研究基金项目(ZD201001)
国家自然科学基金项目(61363052)
内蒙古自治区自然科学基金项目(2014MS0607
2014BS0607)
关键词
云计算
视频直播
资源分配
服务器选择
多阶段调度算法
cloud computing
live streaming
resource allocation
server selection
multiphase scheduling algorithm
