Modelling the population dynamics and the file availability in a BitTorrent-like P2P system with decreasing peer arrival rate

被引：0
|
作者：
Susitaival, Riikka [1 ]
Aalto, Samuli [1 ]
机构：
[1] Helsinki Univ Technol, FIN-02015 Helsinki, Finland
来源：
SELF-ORGANIZING SYSTEMS, PROCEEDINGS | 2006年 / 4124卷
关键词：
D O I：
暂无
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
Many measurement studies of P2P file sharing systems suggest that the request rate for a file changes over time and the system is thus non-stationary. For this reason we study the population dynamics and the availability of a file in a BitTorrent-like file sharing system, when the arrival rate for file requests decreases exponentially. We study the system first by a deterministic fluid model and then by a more detailed Markov chain analysis that allows estimating the life time of a single chunk exactly. Simple approximation for the life time is also derived. In addition, we simulate the life time of a file consisting multiple chunks in order to verify the analytical results to be applicable also to a more complex system.
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页码：34 / 48
页数：15
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