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Third International Workshop on Mobile Distributed Computing (MDC) (ICDCSW'05) (2005)
Columbus, Ohio, USA
June 6, 2005 to June 10, 2005
ISSN: 1545-0678
ISBN: 0-7695-2328-5
pp: 564-570
Doina Bein , University of Nevada at Las Vegas
Ajoy K. Datta , University of Nevada at Las Vegas
Vincent Villain , Université de Picardie Jules Verne
<p>Given a wireless mobile ad hoc network (MANET), we present a self-stabilizing optimal local routing (SOLR) algorithm. Our claim of optimality is based on the minimum distance. The optimal routing is done with respectto the t closest nodes (called t-set). The locality is maintained with respect to the t-set, not with the direct neighbors. The algorithm is transparent to what the distance means: can be either the real distance, or the number of hops. The value of t is application dependent, and is decided in advance. t is n (where n is the upper bound on the maximum number of nodes in the network) when each node needs to know the shortest paths to all other nodes. t is less than n when nodes need to know the network only partially.</p> <p>A self-stabilizing system has the ability to automatically recover to normal behavior in case of transient faults, without a centralized control. Each node can start in some arbitrary state and with no knowledge of the network architecture, but still eventually computes a correct routing table for the t-closest nodes (t-set).</p> <p>The space complexity per node of SOLR is 0((t + δ)log(n)) bits (where δ is the node degree) with a total of 0(n(t + Δ) log(n)) bits (where Δ is the maximum node degree) for the whole network. The stabilization time of the SOLR algorithm is 0(d + c) time units (where d is the network diameter and c is a large constant depending on some local computation).</p> <p>SOLR can easily work for optimal on-demand routing by considering the set of nodes for which the shortest paths are desired instead of the t closest nodes. Also, it can be extended to a global routing protocol by using features specific to other protocols (e.g., hierarchical routing, cluster routing, interval routing, etc.).</p>
ad hoc network, distributed algorithm, local routing, minimal distance, mobile network, optimal routing, self-stabilization

A. K. Datta, D. Bein and V. Villain, "Self-Stabilizing Optimal Local Routing in Ad Hoc Networks," 25th IEEE International Conference on Distributed Computing Systems Workshops(ICDCSW), Columbus, OH USA, 2005, pp. 564-570.
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