Incentivize Bittorrent Peers to Simultaneously Upload to More Neighbors

Incentivize BitTorrent Peers to Simultaneously Upload to More Neighbors Qing-Chao Cai, and Kwok-Tung Lo, Member, IEEE Department of Electronic & discriminating information Engineering The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR eie.tsai@polyu.edu.hk, enktlo@inet.polyu.edu.hk AbstractIn BitTorrent swarms, if peers demand to upload to much neighbors simultaneously, they butt target their shell bandwidth go against utilized, which in turn improves the transfer performance of separate peers. However, in this paper, through extensive experiments, we demonstrate that comp atomic trope 18d with peers with slight unchokes1 , peers with more unchokes be to perceive a worse download performance, while contributing more data to the swarm, which seriously impairs peers allowingness to summation the number of unchokes. By a candid and intuitive analysis, we essay that this is because the tit-for-tat policy of BitTorrent, in deciding whi ch neighbors be to be unchoked, favors the neighbors which uploaded to the topical anesthetic peer in the recent several unchoking rounds. To ?x this problem, we apply a simple but yet ef?cient modi?cation to the tit-for-tat policy of BitTorrent much(prenominal) that the conclusion of unchokes is based on the size of data transferred during a comparatively long period.

In this way, by increasing the number of unchokes, peers will be rewarded with a shortened download time, and are and then motivated to simultaneously unchoke more peers, which eventu totallyy bene?ts all the peers in the swarm. forefinger TermsBitTorrent, tit -for-tat, performance analysis I. I NTROD! UCTION BitTorrent has been unrivalled of the almost popular Internet applications for a long time, and accounts for a signi? tilt fraction of todays Internet traf?c. By mixed bag the uniform distribution of ?le chunks among participating peers, BitTorrent makes peers able to get their outgoing bandwidth effectively utilized [5], and thus is scalable to tumescent deployment without incurring much embody on...If you want to get a full essay, order it on our website: BestEssayCheap.com

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