Stochastic properties of the random waypoint mobility model: epoch length, direction distribution, and cell change rate

  • Authors:
  • Christian Bettstetter;Hannes Hartenstein;Xavier Pérez-Costa

  • Affiliations:
  • Inst. of Communication Networks, Munich, Germany;NEC Europe, Heidelberg, Germany;NEC Europe, Heidelberg, Germany

  • Venue:
  • MSWiM '02 Proceedings of the 5th ACM international workshop on Modeling analysis and simulation of wireless and mobile systems
  • Year:
  • 2002

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Abstract

The random waypoint model is a commonly used mobility model for simulations of wireless communication networks. In this paper, we present analytical derivations of some fundamental stochastic properties of this model with respect to: (a) the length and duration of a movement epoch, (b) the chosen direction angle at the beginning of a movement epoch, and (c) the cell change rate of the random waypoint mobility model when used within the context of cellular networks. Our results and methods can be used to compare the random waypoint model with other mobility models. The results on the movement epoch duration as well as on the cell change rate enable us to make a statement about the 'degree of mobility' of a certain simulation scenario. The direction distribution explains in an analytical manner the effect that nodes tend to move back to the middle of the system area.