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Routing Over Multi-Hop Wireless Network of Mobile Computers

  • Charles E. Perkins
  • Pravin Bhagwat
Part of the The Kluwer International Series in Engineering and Computer Science book series (SECS, volume 353)

Abstract

An ad-hoc network is the cooperative engagement of a collection of Mobile Hosts without the required intervention of any centralized Access Point. In this paper we present an innovative design for the operation of such ad-hoc networks. The basic idea of the design is to operate each Mobile Host as a specialized router, which periodically advertises its view of the interconnection topology with other Mobile Hosts within the network. This amounts to a new sort of routing protocol. We have investigated modifications to the basic Bellman-Ford routing mechanisms, as specified by the Routing Information Protocol, making it suitable for a dynamic and self-starting network mechanism as is required by users wishing to utilize ad-hoc networks. Our modifications address some of the previous objections to the use of Bellman-Ford, related to the poor looping properties of such algorithms in the face of broken links and the resulting time dependent nature of the interconnection topology describing the links between the Mobile Hosts. Finally, we describe the ways in which the basic network-layer routing can be modified to provide MAC-layer support for ad-hoc networks.

Keywords

Mobile Node Medium Access Control Sequence Number Mobile Host Break Link 
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

© the Association of Computing Machinery, Inc. 1994

Authors and Affiliations

  • Charles E. Perkins
    • 1
  • Pravin Bhagwat
    • 2
  1. 1.IBM ResearchYorktown Heights
  2. 2.University of MarylandCollege Park

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