Providing VoD Services Based on Unstructured Overlay

2008 IEEE/IFIP International Conference on Embedded and Ubiquitous Computing

Jin

et al. 2008

Self Cite

Large-scale stream media delivery over Internet is one hot and hard problem. Three main solutions have been developed for this purpose. Content delivery network (CDN) can provide high quality streaming service with high cost. Server-based proxies are costeffective but not scalable due to the limited proxy capacity and its centralized control. Peer-to-Peer (P2P) network is scalable but does not guarantee high quality streaming service due to its self-restrained characteristic. This paper proposes a new chunk-based scalable and reliable proxy scheme for P2P network. Clients are self-organized in unstructured P2P VoD system GridCast and requests for media contents that are not found in P2P overlay from proxy servers. This scheme can address the limitations of server-based proxy model and client-based P2P model. The proposed scheme is evaluated by trace-driven simulations from logs collected in GridCast. The results show that the approach proposed significantly improves the quality of media streaming and the system scalability .

Section: Figure1 System Architecturementioning

confidence: 99%

A New Proxy Scheme for Large-Scale P2P VoD System

Jiang

2008 IEEE/IFIP International Conference on Embedded and Ubiquitous Computing

Jin

et al. 2008

Self Cite

“…In order to provide high quality video, piece scheduling, peer selection, failure recovery and a robust streaming architecture are crucial to the system. Many researches such as BiToS [11], P2Cast [12], P2VOD [13], PcVOD [14], PONDER [15], GridCast [16] [17], PROP [22], and [23] have proposed to improve the video quality under different assumptions. We expect the video quality can be increased by the assistance of stable proxy.…”

Section: Introductionmentioning

confidence: 99%

Peer-to-Peer Video-on-Demand Service in NuWeb

2009 10th International Symposium on Pervasive Systems, Algorithms, and Networks

Teng

Hwang

2009

Traditional client/server architecture has difficulty in coping with the significant growth of user demands due to the continuing growth of video quality and ease of producing video content. Consequently, peer-to-peer (P2P) architecture has become the most feasible solution for providing video content. In order to provide high quality video, piece scheduling, peer selection, failure recovery and a robust streaming architecture are crucial to P2P video streaming systems. On the other hand, user privacy is a concern in the age of web2.0. Most Internet users have to share their information through well-known large-scale commercial websites. These websites often have capacity restriction for users, and constraints on users' copyright. NuWeb was proposed to ensure user's privacy by providing individual space to each user in the cyber-world. Based on the infrastructure of NuWeb, this study presents a proxy-assisted P2P VOD architecture. Regional proxies of NUWeb can deliver and autonomously share videos for every user in the P2P system. Furthermore, Gray Relation Analysis based (GRA-based) peer selection and deadline-based piece scheduling are also proposed to offer reliable video transmission. The simulation experiments demonstrate that our approach can provide low delay, high resilience and high streaming quality to users.

Peer-to-Peer Video-On-Demand service in NUWeb

Teng

Hwang

2012

IJAHUC

Because of the continuing growth of video quality and ease of producing video content, traditional centralised video streaming approaches have difficulty in coping with the increasing users' demand in the age of Web 2.0. On the other hand, Peer-to-Peer (P2P) video streaming that only involve peers cannot guarantee reliable Quality of Service (QoS) because of the transient nature of peers. To achieve both scalability and reliability, we present a proxy-assisted P2P Video-On-Demand (VOD) system based on the Net User's Web (NUWeb). In our system, client nodes are self-organised into a mesh-like P2P system to actively participate in the video delivery. A Grey Relation Analysis (GRA)-based peer selection and a deadline-based piece scheduling are proposed to effectively select suitable parents and timely switch parents to provide high video quality. Based on a structured P2P, proxies are also partially participated as an important assistant to maintain the QoS. The simulation experiments show that our approach can provide low delay, high resilience and high streaming quality.