W-NINE: a two-stage emulation platform for mobile and wireless systems

  • Authors:
  • Emmanuel Conchon;Tanguy Pérennou;Johan Garcia;Michel Diaz

  • Affiliations:
  • Université de Toulouse, IRIT/IRT-Champollion/ISIS-ISAE, Castres, France;CNRS, LAAS, Toulouse, France and Université de Toulouse, UPS, INSA, INP, ISAE, LAAS, Toulouse, France;Department of Computer Science, University of Karlstad, Karlstad, Sweden;CNRS, LAAS, Toulouse, France and Université de Toulouse, UPS, INSA, INP, ISAE, LAAS, Toulouse, France

  • Venue:
  • EURASIP Journal on Wireless Communications and Networking - Special issue on simulators and experimental testbeds design and development for wireless networks
  • Year:
  • 2010

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Abstract

More and more applications and protocols are now running on wireless networks. Testing the implementation of such applications and protocols is a real challenge as the position of the mobile terminals and environmental effects strongly affect the overall performance. Network emulation is often perceived as a good trade-off between experiments on operational wireless networks and discrete-event simulations on Opnet or ns-2. However, ensuring repeatability and realism in network emulation while taking into account mobility in a wireless environment is very difficult. This paper proposes a network emulation platform, called W-NINE, based on off-line computations preceding online pattern-based traffic shaping. The underlying concepts of repeatability, dynamicity, accuracy, and realism are defined in the emulation context. Two different simple case studies illustrate the validity of our approach with respect to these concepts.