首页|期刊导航|东华大学学报（英文版）|Improvement of Incentive Mechanism on BitTorrent-like Peer-to-Peer File Sharing Systems
东华大学学报（英文版）2007，Vol.24Issue(4)：523-528,6.
Improvement of Incentive Mechanism on BitTorrent-like Peer-to-Peer File Sharing Systems
Improvement of Incentive Mechanism on BitTorrent-like Peer-to-Peer File Sharing Systems
摘要
Abstract
BitTorrent is a very popular Peer.to-Peer file sharing system, which adopts a set of incentive mechanisms to encourage contribution and prevent free-riding. However,we find that BitTorrent's incentive mechanism can prevent free-riding effectively in a system with a relatively low number of seeds, but may fail in producing a disincentive for free-riding in a system with a high number of seeds. The reason is that BitTorrent does not provide effective mechanisms for seeds to guard against free-riding.Therefore, we propose a seed bandwidth allocation strategy for the BitTorrent system to reduce the effect of seeds on free-riding. Our target is that a downloader which provides more service to the system will be granted a higher benefit than downloaders which provide lower service when some downioaders ask for downloading file from a seed. Finally,simulation results are given, which validate the effectiveness of the proposed strategy.关键词
BitTorrent/Free-Riding/Incentive Mechunism/Bandwidth Allocation StrategyKey words
BitTorrent/Free-Riding/Incentive Mechunism/Bandwidth Allocation Strategy分类
信息技术与安全科学引用本文复制引用
YU Jia-di,LI Ming-lu,HONG Feng,XUE Guang-tao..Improvement of Incentive Mechanism on BitTorrent-like Peer-to-Peer File Sharing Systems[J].东华大学学报（英文版）,2007,24(4):523-528,6.基金项目
the National Natural Science Foundation of China under Grant No. 60503045 and No. 60303040. （）
