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Mobile Agent Rendezvous in a Ring Using Faulty Tokens

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Book cover Distributed Computing and Networking (ICDCN 2008)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 4904))

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Abstract

We consider the rendezvous problem which requires k mobile agents that are dispersed in a ring of size n, to gather at a single node of the network. The problem is difficult to solve when the agents are identical (i.e. indistinguishable), they execute the same deterministic algorithm, and the nodes of the ring are unlabelled (i.e. anonymous). In this case, rendezvous can be achieved by having each agent mark its starting location in the ring using a token. This paper focusses on fault tolerant solutions to the problem when tokens left by an agent may fail unexpectedly. Previous solutions to the problem had several limitations—they either assumed a completely synchronous setting or were restricted to few specific instances of the problem where the value of n is such that \(\gcd(n,k')=1\) ∀ k′ ≤ k. We improve on these results, solving rendezvous in asynchronous rings for arbitrary values of n and k, whenever it is solvable.

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Authors and Affiliations

  1. School of Information Technology and Engineering, University of Ottawa, Canada

    Shantanu Das

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  1. Shantanu Das
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Shrisha Rao Mainak Chatterjee Prasad Jayanti C. Siva Ram Murthy Sanjoy Kumar Saha

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Das, S. (2007). Mobile Agent Rendezvous in a Ring Using Faulty Tokens. In: Rao, S., Chatterjee, M., Jayanti, P., Murthy, C.S.R., Saha, S.K. (eds) Distributed Computing and Networking. ICDCN 2008. Lecture Notes in Computer Science, vol 4904. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77444-0_29

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  • DOI: https://doi.org/10.1007/978-3-540-77444-0_29

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-77443-3

  • Online ISBN: 978-3-540-77444-0

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