Analytical and stochastic modeling techniques and - download pdf or read online

By Khalid Al-Begain, Dieter Fiems, Gábor Horváth

ISBN-10: 3642022049

ISBN-13: 9783642022043

This ebook constitutes the refereed complaints of the sixteenth overseas convention on Analytical and Stochastic Modeling concepts and functions, ASMTA 2009, held in Madrid, Spain, in June 2009 together with ECMS 2009, the 23nd ecu convention on Modeling and Simulation.

The 27 revised complete papers offered have been rigorously reviewed and chosen from fifty five submissions. The papers are geared up in topical sections on telecommunication networks; instant & cellular networks; simulation; quueing structures & distributions; queueing & scheduling in telecommunication networks; version checking & technique algebra; functionality & reliability research of assorted systems.

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1. 01s time slot for both the P2P and CDN flows. As expected, the delays are shorter for CDN delivery. 33s with about 10% of the delays exceeding 1s. 1 0,8 0,6 Content delivery networks: CDF 0,4 Content delivery networks: frequencies Peer-to-peer: CDF 0,2 Peer-to-peer: frequencies 0 0,0 0,5 Fig. 2. Delay measurement for P2P and CDN overlays Time [s] 1,0 46 G. Hasslinger, F. Hartleb, and T. Beckhaus In contrast to the generally behaviour visible in the measurement, a tendency for local exchange of P2P content can arise within social groups.

1 0,8 0,6 Content delivery networks: CDF 0,4 Content delivery networks: frequencies Peer-to-peer: CDF 0,2 Peer-to-peer: frequencies 0 0,0 0,5 Fig. 2. Delay measurement for P2P and CDN overlays Time [s] 1,0 46 G. Hasslinger, F. Hartleb, and T. Beckhaus In contrast to the generally behaviour visible in the measurement, a tendency for local exchange of P2P content can arise within social groups. A separation of user communities and content due to different languages is most obvious. e. less than 20% of source locations are observed in Germany for downloads of English content [28].

Network providers have to deal with overlay traffic in the planning and upgrading process, while they employ mechanisms for load balancing on their platforms [13][20]. In this way, inefficient routing on higher layers can be partly reduced by optimization on lower layers. Traffic engineering in overlays and on the application layer may offer additional optimization capabilities, but on the other hand may lead to increased overhead and cross-layer inefficiency by repeating similar and overlapping functions on higher layers or, in the worst case, by employing functions jarring with each other on different layers.

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Analytical and stochastic modeling techniques and applications 16th international conference, ASMTA 2009, Madrid, Spain, June 9-12, 2009: proceedings by Khalid Al-Begain, Dieter Fiems, Gábor Horváth


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