NDLI: An Efficient P2P Content Distribution System Based on Altruistic Demand and Recoding Dissemination

Content Provider	IEEE Xplore Digital Library
Author	Jung-Shian Li Chih-Hung Chao
Copyright Year	1996
Abstract	Peer-to-peer (P2P) content distribution systems based on random linear combination coding schemes outperform traditional block forwarding and source coding systems but have large storage requirements and high computation and communication overheads. To resolve this problem, this paper presents an efficient and scalable P2P content dissemination system based on novel altruistic demand and recoding dissemination mechanisms. In the proposed approach, the shared-content file is segmented and encoded using Reed-Solomon code at a seed. Downstream peers wishing to obtain the file utilize an altruistic demand mechanism to issue demand requests for coded blocks which are useful not only to themselves but also to their neighbors. Upon receiving these requests, the upstream peers utilize a recoding dissemination mechanism to provide the downstream peers with either an existing useful coded block or a new coded block produced using a Lagrange polynomial interpolation method. The two mechanisms rapidly increase the diversity of the coded blocks within the network and therefore provide an effective solution to the missing last block problem. In addition, it is shown that the proposed content distribution system demonstrates a substantial improvement over P2P systems based on random linear combination coding in terms of a lower storage requirement, reduced computation and communication costs, and an improved download efficiency.
Sponsorship	IEEE Systems, Man, and Cybernetics Society
Starting Page	1083
Ending Page	1093
Page Count	11
File Size	862283
File Format	PDF
ISSN	10834427
Volume Number	40
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Distributed computing Chaotic communication Lagrangian functions Interpolation Network servers Source coding Computational efficiency Computer networks File servers Software libraries Reed–Solomon code Altruistic demand Lagrange polynomial interpolation peer to peer (P2P) random linear combination coding recoding dissemination
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Information Systems Electrical and Electronic Engineering Human-Computer Interaction Computer Science Applications Software

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