Admission Control with Elastic QoS for Video on Demand Systems

作     者：Fu-Shou Lin 1 Bao-Qun Yin 1,2 Jing Huang 1 Xu-Min Wu 1 1 Key Lab of Anhui Network Communication System and Control, University of Science and Technology of China, Hefei 230027, China 2 National Network New Media Engineering Research Center, Institute of Acoustics, Chinese Academy of Science, Beijing 100190, China 

作者机构：Key Lab of Anhui Network Communication System and Control University of Science and Technology of China Hefei China National Network New Media Engineering Research Center Institute of Acoustics Chinese Academy of Science Beijing China 

出 版 物：《International Journal of Automation and computing》 (国际自动化与计算杂志（英文版）)

年 卷 期：2012年第9卷第5期

页      面：467-473页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 081001[工学-通信与信息系统] 

基　　金：supported by National Natural Science Foundation of China (Nos. 61174124, 61233003 and 60935001) National High Technology Research and Development Program of China (863 Program) (No. 2011AA01A102) 

主　　题：Partially observable Markov decision processes (POMDPs) admission control resource allocation elastic quality of service (QoS) policy gradient 

摘      要：In network service systems, satisfying quality of service (QoS) is one of the main objectives. Admission control and resource allocation strategy can be used to guarantee the QoS requirement. Based on partially observable Markov decision processes (POMDPs), this paper proposes a novel admission control model for video on demand (VOD) service systems with elastic QoS. Elastic QoS is also considered in resource allocation strategy. Policy gradient algorithm is often available to find the solution of POMDP problems, with a satisfactory convergence rate. Through numerical examples, it can be shown that the proposed admission control strategy has better performance than complete admission control strategy.