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Two-Stage Wireless Network Emulation

  • Tanguy Pérennou
  • Emmanuel Conchon
  • Laurent Dairaine
  • Michel Diaz
Conference paper
Part of the IFIP International Federation for Information Processing book series (IFIPAICT, volume 169)

Abstract

Testing and deploying mobile wireless networks and applications are very challenging tasks, due to the network size and administration as well as node mobility management. Well known simulation tools provide a more flexible environment but they do not run in real time and they rely on models of the developed system rather than on the system itself. Emulation is a hybrid approach allowing real application and traffic to be run over a simulated network, at the expense of accuracy when the number of nodes is too important. In this paper, emulation is split in two stages: first, the simulation of network conditions is precomputed so that it does not undergo real-time constraints that decrease its accuracy; second, real applications and traffic are run on an emulation platform where the precomputed events are scheduled in soft real-time. This allows the use of accurate models for node mobility, radio signal propagation and communication stacks. An example shows that a simple situation can be simply tested with real applications and traffic while relying on accurate models. The consistency between the simulation results and the emulated conditions is also illustrated.

Keywords

Wireless Network Node Mobility Packet Loss Mobile Host Mobile Wireless Network 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© International Federation for Information Processing 2005

Authors and Affiliations

  • Tanguy Pérennou
    • 1
    • 2
  • Emmanuel Conchon
    • 1
    • 2
  • Laurent Dairaine
    • 1
    • 2
  • Michel Diaz
    • 2
  1. 1.ENSICAToulouse Cedex 5France
  2. 2.LAAS-CNRSToulouse Cedex 4France

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