3rd International ICST Conference on Mobile Multimedia Communications

Research Article

Experimental evaluation of community-based WLAN voice and data services

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        author={Pantelis A. Frangoudis and Vasileios P. Kemerlis and Dimitrios C. Paraskevaidis and Elias C. Efstathiou and George C. Polyzos},
        title={Experimental evaluation of community-based WLAN voice and data services},
        proceedings={3rd International ICST Conference on Mobile Multimedia Communications},
        keywords={Community Networks Secure VoIP Wi-Fi Networks Performance Measurements},
  • Pantelis A. Frangoudis
    Vasileios P. Kemerlis
    Dimitrios C. Paraskevaidis
    Elias C. Efstathiou
    George C. Polyzos
    Year: 2010
    Experimental evaluation of community-based WLAN voice and data services
    DOI: 10.4108/ICST.MOBIMEDIA2007.1772
Pantelis A. Frangoudis1,*, Vasileios P. Kemerlis1,*, Dimitrios C. Paraskevaidis1,*, Elias C. Efstathiou1,*, George C. Polyzos1,*
  • 1: Mobile Multimedia Laboratory Department of Informatics/Computer Science Athens University of Economics and Business 47A Evelpidon Street, GR-11362 Athens, Greece
*Contact email: pfrag@aueb.gr, vpk@cs.aueb.gr, dcp@aueb.gr, efstath@aueb.gr, polyzos@aueb.gr


The purpose of this work is to experimentally evaluate the quality of voice and data services over community-based WLAN access networks. We use P2PWNC, the Wireless LAN roaming architecture that we have developed, as the basis for the provision of ubiquitous citywide WLAN access and set up an infrastructure for secure voice and data communications on top of it. Our scheme was designed with widely available, low-cost WLAN equipment in mind. Thus, we wish to estimate the performance penalty our proposed mechanisms incur for such devices and study their limitations as to the support for secure data and multimedia communications. In this work, we measure the maximum number of simultaneous voice calls that a P2PWNC-enabled access point can sustain, and the TCP throughput achieved by a single mobile station in the presence of simultaneous TCP flows by other P2PWNC users, when IPsec is employed to secure communications.