On long-term social relationships in peer-to-peer systems

Haiyang Wang, Feng Wang, Jiangchuan Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

BitTorrent, the most popular file delivery system over the Internet, has attracted attention from network operators and researchers for its wide deployment. Recent studies suggest that long-term relationships among BT peers could be explored for peer cooperation, as to achieve better sharing efficiency. However, whether such long-term relationships exist remain unknown. In this paper, we for the first time examine the feasibility of social network based content delivery through the study of Twitter initialized/shared torrents. We show that the peers in such swarms have stronger temporal locality, thus offering great opportunity for improving their degree of sharing. Based on the Hadamard Transform of peers' online behaviors, we develop a social index to quickly locate peers of common patterns. Preliminary PlanetLab experiments indicate that the incorporation of social relations remarkably accelerates the downloading time. The improvement remains noticeable even in a hybrid system with a small set of socially active peers only.

Original languageEnglish (US)
Title of host publication2011 IEEE 19th International Workshop on Quality of Service, IWQoS 2011
DOIs
StatePublished - 2011
Event2011 IEEE 19th International Workshop on Quality of Service, IWQoS 2011 - San Jose, CA, United States
Duration: Jun 6 2011Jun 7 2011

Publication series

NameIEEE International Workshop on Quality of Service, IWQoS
ISSN (Print)1548-615X

Other

Other2011 IEEE 19th International Workshop on Quality of Service, IWQoS 2011
CountryUnited States
CitySan Jose, CA
Period6/6/116/7/11

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