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Opportunistic Information Dissemination in Mobile Ad-Hoc Networks: Adaptiveness vs. Obliviousness and Randomization vs. Determinism

Farach-Colton, Martin and Fernández Anta, Antonio and Milani, Alessia and Mosteiro, Miguel A. and Zaks, Shmuel (2012) Opportunistic Information Dissemination in Mobile Ad-Hoc Networks: Adaptiveness vs. Obliviousness and Randomization vs. Determinism. In: The 10th Latin American Symposium onTheoretical Informatics (LATIN 2012), April 16-20, 2012, Arequipa, Peru.

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Abstract

In this paper the problem of information dissemination in Mobile Ad-hoc Networks (MANETs) is studied. The problem is to disseminate a piece of information, initially held by a distinguished source node, to all nodes in a target set. We assume a weak set of restrictions on the mobility of nodes, parameterized by α, the disconnection time, and β, the link stability time, such that the MANETs considered are connected enough for dissemination. Such a connectivity model generalizes previous models in that we assume much less connectivity, or make explicit the assumptions in previous papers. In MANETs, nodes are embedded in the plane and can move with bounded speed. Communication between nodes occurs over a collisionprone single channel. We show upper and lower bounds for different types of randomized protocols, parameterized by α and β. This problem has been extensively studied in static networks and for deterministic protocols. We show tight bounds on the randomized complexity of information dissemination in MANETs, for reasonable choices of α and β. We show that randomization reduces the time complexity of the problem by a logarithmic or linear factor, depending on the class of randomized protocol considered.

Item Type: Conference or Workshop Papers (Paper)
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering, Science and Mathematics > School of Electronics and Computer Science
Depositing User: Antonio Fernandez
Date Deposited: 07 Nov 2012 09:21
Last Modified: 16 Jun 2017 11:40
URI: http://eprints.networks.imdea.org/id/eprint/359

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