Hierarchical Architecture for Peer-to-Peer Video on Demand Systems with the Notion of Dynamic Swarms

Yasuaki YUJI  Satoshi FUJITA  

IEICE TRANSACTIONS on Information and Systems   Vol.E97-D   No.12   pp.3025-3032
Publication Date: 2014/12/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2014PAP0006
Type of Manuscript: Special Section PAPER (Special Section on Parallel and Distributed Computing and Networking)
Category: Network
Peer-to-Peer,  video-on-demand,  playback suspension,  match-making,  

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This paper proposes a method to reduce the playback suspension in a Video-on-Demand system based on the Peer-to-Peer technology (P2P VoD). Our main contribution is twofold. The first is the proposal of a hierarchical P2P architecture with the notion of dynamic swarms. Swarm is a group of peers to have similar playback position and those swarms are connected with an overlay so that requested pieces are forwarded from a swarm to another swarm in a bucket brigade manner, where the forward of pieces is regulated by the super-peer (SP) of each swarm. The second contribution is the proposal of a match making scheme between requests and uploaders. The simulation result indicates that the proposed scheme reduces the total waiting time of a randomized scheme by 24% and the load of the media server by 76%.