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A Virtual Spanner for Efficient Face Routing in Multihop Wireless Networks

  • Héctor Tejeda
  • Edgar Chávez
  • Juan A. Sanchez
  • Pedro M. Ruiz
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4217)

Abstract

Geographic routing for ad hoc and sensor networks has gained a lot of momentum during the last few years. In this scheme routes are created locally by each individual node, just based on the position of the destination and its local neighbors. To do that, a node selects its best neighbor (according to some metric) out of those being closer than itself to the destination. This operation is called greedy mode. When a node has no such neighbors, it enters into face routing mode. However, for face routing to work properly, the underlying graph needs to be planarized by removing crossing edges, which may eventually be very good from the routing metric point-of-view. In this paper, we introduce a new localized scheme to build a planar virtual spanner in a simple and efficient way, with low control overhead. The produced virtual spanner allows face routing to be executed, without the need to remove any of the original links in the network. Thus, the best links according to the routing metric can still be used, Our simulation results show that by performing face routing over the virtual spanner, we manage to enhance the routing performance both for greedy-face-greedy routing and face routing between a 40 to 60% compared to existing planarity tests.

Keywords

Virtual Node Unit Disk Graph Transmission Radius Face Mode Multihop 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.

References

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Héctor Tejeda
    • 1
  • Edgar Chávez
    • 1
  • Juan A. Sanchez
    • 1
  • Pedro M. Ruiz
    • 2
  1. 1.Escuela de Ciencias Físico-MatemáticasUniversidad MichoacanaMéxico
  2. 2.Facultad de InformáticaUniversity of MurciaSpain

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