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Auflistung nach Autor:in "Wagner, Christian"

1 - 3 von 3
  • Konferenzbeitrag
    The spatial node distribution of the random waypoint mobility model
    (Mobile Ad-Hoc Netzwerke, 1. Deutscher Workshop über Mobile Ad-Hoc Netzwerke WMAN 2002, 2002) Bettstetter, Christian; Wagner, Christian
    The random waypoint model is a frequently used mobility model for simulation-based studies of wireless ad hoc networks. This paper investigates the spatial node distribution that results from using this model. We show and interpret simulation results on a square and circular system area, derive an analytical expression of the expected node distribution in one dimension, and give an approximation for the two-dimensional case. Finally, the concept of attraction areas and a modified random waypoint model, the random borderpoint model, is analyzed by simulation.
  • Konferenzbeitrag
    Stochastic evaluation of geographical forwarding in vehicular ad hoc networks
    (Informatik 2004 – Informatik verbindet – Band 1, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2004) Wagner, Christian; Franz, Walter
    Vehicular ad hoc networks which support active safety applications have to address data packet recipients by taking the position of the vehicles into account. This leads to a two step forwarding procedure. Firstly, in line forwarding mode data packets are sent to a target area and in a second step the data packets are distributed inside the target area (area forwarding mode). This contribution introduces methods of stochastic analysis to estimate the performance of these two forwarding phases.
  • Konferenzbeitrag
    Using games for improved diagnosis in trustworthy design of autonomic systems
    (Informatik 2009 – Im Focus das Leben, 2009) Margaria, Tiziana; Wagner, Christian; Bakera, Marco