Towards Higher-Dimensional Topological Self-Stabilization: A Distributed Algorithm for Delaunay Graphs


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Date

2012-10-26

Publication Type

Journal Article

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yes

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Abstract

This article studies the construction of self-stabilizing topologies for distributed systems. While recent research has focused on chain topologies where nodes need to be linearized with respect to their identifiers, we explore a natural and relevant 2-dimensional generalization. In particular, we present a local self-stabilizing algorithm DStab which is based on the concept of ‘‘local Delaunay graphs’’ and which forwards temporary edges in greedy fashion reminiscent of compass routing. DStab constructs a Delaunay graph from any initial connected topology and in a distributed manner in time O(n 3 ) in the worst case; if the initial network contains the Delaunay graph, the convergence time is only O(n) rounds. DStab also ensures that individual node joins and leaves affect a small part of the network only. Such self-stabilizing Delaunay networks have interesting applications and our construction gives insights into the necessary geometric reasoning that is required for higher-dimensional linearization problems.

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published

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Volume

457

Pages / Article No.

137 - 148

Publisher

Elsevier

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Subject

Distributed algorithms; Topology control; Social networks

Organisational unit

03340 - Widmayer, Peter (emeritus) / Widmayer, Peter (emeritus) check_circle

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