Enabling DVD-like features in P2P video-on-demand systems

Abstract

Peer-to-peer (p2p) video-on-demand (VoD) is increasingly popular with Internet users. Currently deployed pure p2p VoD systems provide poor general performance and they lack advanced features such as fast forward and seeking to arbitrary points. Peer-assisted VoD systems can provide such services, but they require very well provisioned source servers (or server farms).We propose BulletMedia, a system that uses proactive caching to attempt to provide advanced features without requiring a well provisioned server. In BulletMedia, blocks are altruistically replicated by peers not to aid immediate playback but to simply increase the number of replicas of each block. This helps ensure that blocks are available in-overlay and reduces dependence on the source. BulletMedia combines a traditional overlay mesh approach with a structured overlay. The overlay mesh is used to fetch blocks at a high rate, while the structured overlay is used to enable efficient block discovery and to control block replication. Initial experimental results from a prototype BulletMedia implementation demonstrate that it can both effectively control in-overlay block replication and can efficiently use these replicas to perform forward seeks.

An Adaptive Buffering Scheme for P2P Live and Time-Shifted Streaming

“…In P2VOD, a cooperative caching scheme using a mesh-based buffermap structure has been proposed to reduce delay when a peer joins or leaves the VOD multicast tree [9]. In order to support VCR functionality efficiently in P2P VOD systems, BulletMedia reduces the load on the media server by creating replicas of the video and distributing them among several peers [10]. Unlike existing FIFO cooperative caching that determine the data to cache according to the order of requests, a video popularity-based caching scheme has also been proposed [16].…”

“…To improve the performance of P2P streaming systems, many buffering techniques (e.g., prefetching and caching) have been proposed [9][10][11][12][13][14][15][16][17][18]. Especially in P2P VOD systems, once peers store video files that they want on their own storage devices, they share these files with each other at any time.…”

Peer-assisted On-demand Video Streaming with Selfish Peers

“…A significant portion of this literature has focussed on explicit allocation of peer upload bandwidth [2,3,4,5,6,7,8,9,10]. This literature, for example, includes treebased cache-and-relay approaches [4,5], and work that considers the problem of determining the set of servers (or peers) that should serve each peer, and at what rate each server should operate [6,7].…”

An Adapted Multi-way Tree with Holder-chain for Large Scale P2P VoD System

“…The traditional client-server architecture can hardly scale to a large population of users due to the limited service capacity of the servers. Recent years, P2P networks have been shown to be a promising approach to provide high scalability VoD streaming service [1][2][3][4][5][6][7][8].…”

“…Recently, some studies on P2P VoD systems [8][9][10][11][12][13][14][15][16] have emphasized the support to VCR-like operations and can handle the random seeks. Most of these studies have applied a hybrid overlay.…”