Modeling peer-peer file sharing systems

Ge, Zihui; Figueiredo, Daniel R.; Jaiswal, Sharad; Kurose, Jim; Towsley, Don

doi:10.1109/infcom.2003.1209239

Cited by 204 publications

(151 citation statements)

References 11 publications

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“…Extensive validation of the model results for our modeling technique shares the same difficulty of previous work on analytical models for P2P networks [9,14]. It is a difficult task since existing measurement studies on realistic file sharing P2P applications have not focused on characterizing the duration of the transfer phase and detailed discrete-event simulations of realistic P2P file sharing applications would have a prohibitive programming and computational cost.…”

Section: Numerical Analysismentioning

confidence: 70%

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Analysis of resource transfers in peer-to-peer file sharing applications using fluid models

Gaeta¹,

Gribaudo²,

Manini³

et al. 2006

Performance Evaluation

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This paper proposes a stochastic fluid flow model to compute the transfer time distribution of resources in peer-to-peer file sharing applications. The amount of bytes transferred among peers is represented by a continuous quantity (the fluid level) whose flow rate is modulated by a set of discrete states representing the concurrent upload and download operations on the peers participating to the transfer. A transient solution of the model is then performed to compute the probability that a peer can download a given resource in less than t units of time as a function of several system parameters. In particular, the impact of file popularity, bandwidth characteristics, concurrent downloads and uploads, cooperation level among peers, and user behavior are included in our model specification. We also provide numerical results aiming at proving the potentialities of the approach we adopted as well as to investigate interesting issues related to the effect of incentive mechanisms on the user cooperation.

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Section: Numerical Analysismentioning

confidence: 70%

“…The work in [9] is among the first to model a general P2P system and evaluate its performance. In particular that paper proposed a queuing network based model to explore and illustrate fundamental performances issues of P2P file-sharing systems.…”

Section: Related Workmentioning

confidence: 99%

Analysis of resource transfers in peer-to-peer file sharing applications using fluid models

Gaeta¹,

Gribaudo²,

Manini³

et al. 2006

Performance Evaluation

View full text Add to dashboard Cite

show abstract

“…In [28], a P2P file sharing system is modeled as a multiclass closed queuing network. This allows for the analysis of system throughput dynamics under various configurations of the peer community.…”

Section: Related Workmentioning

confidence: 99%

Analysis of a CDN–P2P hybrid architecture for cost-effective streaming media distribution

et al. 2006

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To distribute video and audio data in real-time streaming mode, two different technologies -Content Distribution Network (CDN) and Peer-to-Peer (P2P) -have been proposed. However, both technologies have their own limitations: CDN servers are expensive to deploy and maintain, and consequently incur a cost for media providers and/or clients for server capacity reservation. On the other hand, a P2P-based architecture requires sufficient number of seed supplying peers to jumpstart the distribution process. Compared with a CDN server, a peer usually offers much lower out-bound streaming rate and hence multiple peers must jointly stream a media data to a requesting peer. Furthermore, it is not clear how to determine how much a peer should contribute back to the system after receiving the media data, in order to sustain the overall media distribution capacity.In this paper, we propose and analyze a novel hybrid architecture that integrates both CDN-and P2P-based streaming media distribution. The architecture is highly costeffective: it significantly lowers the cost of CDN capacity reservation, without compromising the media quality delivered. In particular, we propose and compare different limited contribution policies for peers that request a media data, so that the streaming capacity of each peer can be exploited on a fair and limited basis. We present: (1)

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“…There exist models that analyze free riding on the querylevel [10,7] and countermeasures [14,6]. [10,7] do not take network formation, i.e.…”

Section: Related Workmentioning

confidence: 99%

The Dangers of Poorly Connected Peers in Structured P2P Networks and a Solution Based on Incentives

Yang

Matsuo

Ishizuka

2007

IEEE/WIC/ACM International Conference on Web Intelligence (WI'07)

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This paper analyzes structured P2P systems where peers choose both their interaction mode, i.e., how they process incoming queries, and additional contacts in the network autonomously. Since additional contacts incur additional costs, a new kind of free riding behavior, namely having only few contacts, comes into the fray. We refer to it as deliberately poor connectedness (dpc). In this paper, we show that dpc is dominant in many situations. This leads to networks with a low degree of connectivity and a higher overall forwarding load than necessary. We then propose an incentive mechanism against dpc and demonstrate its effectiveness using a formal analysis and experiments.

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Modeling peer-peer file sharing systems

Cited by 204 publications

References 11 publications

Analysis of resource transfers in peer-to-peer file sharing applications using fluid models

Analysis of resource transfers in peer-to-peer file sharing applications using fluid models

Analysis of a CDN–P2P hybrid architecture for cost-effective streaming media distribution

The Dangers of Poorly Connected Peers in Structured P2P Networks and a Solution Based on Incentives

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