Title :
A Probabilistic Approach to Analyze the Effect of Free-Riders in P2P Streaming Services
Author :
Yang, Shuang ; Wang, Xin
Author_Institution :
Sch. of Comput. Sci. & Technol., Fudan Univ., Shanghai
Abstract :
Peer-to-peer applications require high cooperation among users. User cooperation consists of two aspects, upload and download operations. However, not all users are willing to cooperate, and free-riders with little upload bandwidth are widely seen in the applications. Hereby, we put forward the relation between data block probability and the node distance in static situations. Then we discuss the effect of free-riders in peer-to-peer streaming services, focusing on the performance of the whole system and the distribution of blocked users based on mathematical analysis and evaluation in both tree and mesh based structures. Finally, from the numerical result of the analysis above, we provide a solution to diminish the damage of the free-riders in tree-based service.
Keywords :
mathematical analysis; media streaming; peer-to-peer computing; probability; telecommunication network routing; P2P streaming services; data block probability; free-riders; mathematical analysis; mesh based structures; peer-to-peer applications; peer-to-peer streaming services; probabilistic approach; tree based structures; Bandwidth; Computer science; Costs; Distribution functions; Electronic mail; Mathematical analysis; Parallel processing; Peer to peer computing; Probability; Streaming media; free-rider; peer-to-peer; probability; streaming;
Conference_Titel :
Network and Parallel Computing, 2008. NPC 2008. IFIP International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-0-7695-3354-4
DOI :
10.1109/NPC.2008.40
