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Authors: Ajab Khan and Reiko Heckel

Affiliation: University of Leicester, United Kingdom

ISBN: 978-989-8425-69-0

Keyword(s): Stochastic modelling and simulation, P2P VoIP, P2P VoIP network architecture, Graph transformation.

Related Ontology Subjects/Areas/Topics: Communication Networks Education ; Data Communication Networking ; Modeling & Simulation of Communication Networks and Systems ; Network Architectures ; Performance Evaluation ; Software Engineering ; Software Project Management ; Telecommunications ; Traffic Measurement, Analysis, Modeling and Visualization

Abstract: The concept of super peer has been introduced to improve the performance of popular P2P VoIP applications. A super peer is the strongest peer in the network that has the capacity to act as a server for a set of VoIP clients. There is no doubt that by taking benefit of heterogeneity, super peer can do improve the efficiency, without compromising the decentralised nature of P2P networks. The core issue in the formation of super peer based overlay network is the selection of super peer among the participant peers. To solve this problem a number of solutions have been proposed in the literature. Generally, super peer are selected among the best nodes in the network, for example those with the most abondant resources, such as bandwidth, CPU cycles or memory. The next issue is when the peer shall be selected for this extended role either as when peer joins the network, or at any time during the session or promotion to super peer should be subject to requirements. In order to validate these approaches of super peer selection, simulation would be an ideal choice, but most existing simulation approaches cannot cope with unbounded dynamic changes of network topology. We propose an approach to modelling and simulation of P2P systems based on graph transformations, a visual rule based formalism that has recently been supported by facilities for stochastic modelling and simulation. We are considering a P2P VoIP applications such as Skype, we model three alternative solutions to the problem of peer promotion to super peers and evaluate these through simulation. (More)

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Paper citation in several formats:
Khan A. and Heckel R. (2011). MODEL-BASED STOCHASTIC SIMULATION OF SUPER PEER PROMOTION IN P2P VOIP USING GRAPH TRANSFORMATION.In Proceedings of the International Conference on Data Communication Networking and Optical Communication System - Volume 1: DCNET, (ICETE 2011) ISBN 978-989-8425-69-0, pages 32-42. DOI: 10.5220/0003526000320042

@conference{dcnet11,
author={Ajab Khan and Reiko Heckel},
title={MODEL-BASED STOCHASTIC SIMULATION OF SUPER PEER PROMOTION IN P2P VOIP USING GRAPH TRANSFORMATION},
booktitle={Proceedings of the International Conference on Data Communication Networking and Optical Communication System - Volume 1: DCNET, (ICETE 2011)},
year={2011},
pages={32-42},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003526000320042},
isbn={978-989-8425-69-0},
}

TY - CONF

JO - Proceedings of the International Conference on Data Communication Networking and Optical Communication System - Volume 1: DCNET, (ICETE 2011)
TI - MODEL-BASED STOCHASTIC SIMULATION OF SUPER PEER PROMOTION IN P2P VOIP USING GRAPH TRANSFORMATION
SN - 978-989-8425-69-0
AU - Khan A.
AU - Heckel R.
PY - 2011
SP - 32
EP - 42
DO - 10.5220/0003526000320042

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