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Bounded-Hop Energy-Efficient Liveness of Flocking Swarms
March 2013 (vol. 12 no. 3)
pp. 516-528
S. Dolev, Dept. of Comput. Sci., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
M. Segal, Dept. of Commun. Syst. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
H. Shpungin, Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada
In this paper, we consider a set of n mobile wireless nodes, which have no information about each other. The only information a single node holds is its current location and future mobility plan. We develop a two-phase distributed self-stabilizing scheme for producing a bounded hop-diameter communication graph. In the first phase, nodes construct a temporary underlying topology and disseminate their current location and mobility plans. This is followed by a second phase, in which nodes construct the desired topology under two modes: static and dynamic. The static mode provides a fixed topology which does not change in spite of node movements; the dynamic mode allows the topology to change; however, the hop-diameter remains the same. We provide an O(λ,λ2)-bicriteria approximation (in terms of total energy consumption and network lifetime, respectively) algorithm in the static mode: for an input parameter λ, we construct a static h-bounded hop communication graph, where h=n/λ + log λ. In the dynamic mode, given a parameter h, we construct an optimal (in terms of network lifetime) h-bounded hop communication graph when every node moves with constant speed in a single direction along a straight line during each time interval. Our results are validated through extensive simulations.
Index Terms:
telecommunication network topology,energy consumption,graph theory,mobile communication,mobility management (mobile radio),static h-bounded hop communication graph,bounded-hop energy-efficient liveness,flocking swarms,mobile wireless nodes,two-phase distributed self-stabilizing scheme,bounded hop-diameter communication graph,static mode,dynamic mode,energy consumption,network lifetime,Topology,Network topology,Approximation algorithms,Mobile computing,Mobile communication,Ad hoc networks,Approximation methods,bounded diameter,Wireless ad hoc networks,mobility,topology control,energy efficiency
S. Dolev, M. Segal, H. Shpungin, "Bounded-Hop Energy-Efficient Liveness of Flocking Swarms," IEEE Transactions on Mobile Computing, vol. 12, no. 3, pp. 516-528, March 2013, doi:10.1109/TMC.2012.27
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