Algorithmica

, Volume 47, Issue 1, pp 97–117 | Cite as

Deterministic Communication in Radio Networks with Large Labels

Article

Abstract

We study deterministic gossiping in ad hoc radio networks with large node labels. The labels (identifiers) of the nodes come from a domain of size N which may be much larger than the size n of the network (the number of nodes). Most of the work on deterministic communication has been done for the model with small labels which assumes N = O(n). A notable exception is Peleg's paper, where the problem of deterministic communication in ad hoc radio networks with large labels is raised and a deterministic broadcasting algorithm is proposed, which runs in O(n2log n) time for N polynomially large in n. The O(nlog2n)-time deterministic broadcasting algorithm for networks with small labels given by Chrobak et al. implies deterministic O(n log N log n)-time broadcasting and O(n2log2N log n)-time gossiping in networks with large labels. We propose two new deterministic gossiping algorithms for ad hoc radio networks with large labels, which are the first such algorithms with subquadratic time for polynomially large N. More specifically, we propose: a deterministic O(n3/2log2N log n)-time gossiping algorithm for directed networks; and a deterministic O(n log2N log2n)-time gossiping algorithm for undirected networks.

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Copyright information

© Springer 2006

Authors and Affiliations

  1. 1.Department of Computer Science, University of LiverpoolLiverpool L69 7ZFEngland
  2. 2.School of Electrical and Computer Engineering, National Technical University of Athens, 15780ZografouGreece
  3. 3.Department of Computer Science, King's College London, StrandLondon WC2R 2LSEngland

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