Bandwidth-Availability-Based Replication Strategy for P2P VoD Systems

	Bandwidth-Availability-Based Replication Strategy for P2P VoD Systems
	Liu Pingshan; Feng Shengzhong; Huang Guimin; Fan Jianping
刊名	COMPUTER JOURNAL
	2014
英文摘要	In a peer-to-peer (P2P) video-on-demand (VoD) system, each peer contributes a limited disc storage and stores some watched movies to offload the servers when these movies are requested. When the contributed disc storage of a peer is full, to minimize the server load, which movie should be replaced is a key design problem for P2P VoD systems. This problem is a P2Preplication problem. Previous studies on this problem mainly consider content availability, but fail to consider bandwidth availability of peers on the system level. In this paper, assuming that movie popularity is known, we first analyze bandwidth availability of peers on the system level, and then formulate the replication problem as a minimization problem. Based on the minimization problem, we derive two design guidelines. According to the two design guidelines, we propose a bandwidth-availability-based replication algorithm aiming at minimizing the server load, called BAB algorithm. BAB algorithm can make the replicas' distribution towards the optimal distribution in a distributed way. Furthermore, we consider some practical implementation issues of BAB algorithm. Through extensive simulations, we demonstrate that BAB algorithm outperforms the previously proposed algorithms in terms of reducing the server load and improving the streaming quality, in stable environment and dynamic environment, respectively.
收录类别	SCI
原文出处	http://comjnl.oxfordjournals.org/content/57/8/1211
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/5945]
专题	深圳先进技术研究院_数字所
作者单位	COMPUTER JOURNAL
推荐引用方式 GB/T 7714	Liu Pingshan,Feng Shengzhong,Huang Guimin,et al. Bandwidth-Availability-Based Replication Strategy for P2P VoD Systems[J]. COMPUTER JOURNAL,2014.
APA	Liu Pingshan,Feng Shengzhong,Huang Guimin,&Fan Jianping.(2014).Bandwidth-Availability-Based Replication Strategy for P2P VoD Systems.COMPUTER JOURNAL.
MLA	Liu Pingshan,et al."Bandwidth-Availability-Based Replication Strategy for P2P VoD Systems".COMPUTER JOURNAL (2014).