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Experimenting with P2P traffic optimization for wireless mesh networks in a federated OMF-PlanetLab environment

Experimenting with P2P traffic optimization for wireless mesh networks in a federated OMF-PlanetLab environment,10.1109/WCNC.2011.5779251,Giovanni Di

Experimenting with P2P traffic optimization for wireless mesh networks in a federated OMF-PlanetLab environment  
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The ultimate success of the Wireless Mesh Network paradigm (WMN) in large scale deployments depends on the abil- ity to test it in real world scenarios. A typical application scenario which is worth to be investigated in such a context is peer-to- peer traffic management. The creation of large scale testbeds for evaluating wireless mesh technologies and protocols, and for testing their ability to support real world applications in realistic environments, is then a crucial step. OMF (cOntrol and Man- agement Framework) is a well-established control, measurement, and management framework for wireless testbeds. In this paper we present how we integrated an OMF-based wireless testbed in the planetary-scale PlanetLab testbed, making it possible for PlanetLab users to run experiments spanning on both PlanetLab and an OMF-based wireless testbed. In order to demonstrate the usefulness of such an integrated scenario, we tested on it an innovative peer-to-peer traffic optimization technique for the BitTorrent file sharing application. The possibility of running this kind of experiments highlighted several real-world issues which could be investigated thanks to our hybrid experimental scenario. I. INTRODUCTION Testing Wireless Mesh Networks in large scale deployments and with realistic traffic loads is of crucial importance (1). Due to the inherent difficulty of capturing all the relevant aspects of the real behaviour of these systems in analytical or simulation models, research on WMNs has always heavily relied on experimental testbeds (2). Setting up large-scale wireless mesh testbeds, though, is a difficult and costly process. Moreover, since wireless mesh networks are usually employed as access networks to the Internet, taking into account the complexity of the real Internet is part of the efforts to be made for a realistic assessment of these networks. To this purpose, we reckon that it is important to carefully evaluate the impact of peer-to-peer applications on wireless mesh access networks and their resource management schemes, since nowadays more than 50 percent of the overall Internet traffic is produced by applications of this kind (3).
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