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2007

Ensuring strong data guarantees in highly mobile ad hoc networks via quorum systems

8 years 9 months ago
Ensuring strong data guarantees in highly mobile ad hoc networks via quorum systems
Ensuring the consistency and the availability of replicated data in highly mobile ad hoc networks is a challenging task because of the lack of a backbone infrastructure. Previous work provides strong data guarantees by limiting the motion and the speed of the mobile nodes during the entire system lifetime, and by relying on assumptions that are not realistic for most mobile applications. We provide a small set of mobility constraints that are sufficient to ensure strong data guarantees and that can be applied when nodes move along unknown paths and speed, and are sparsely distributed. In the second part of the paper we analyze the problem of conserving energy while ensuring strong data guarantees, using quorum system techniques. We devise a condition necessary for a quorum system to guarantee data consistency and data availability under our mobility model. This condition shows the unsuitability of previous quorum systems and is the basis for a novel class of quorum systems suitable f...
Daniela Tulone
Added 08 Dec 2010
Updated 08 Dec 2010
Type Journal
Year 2007
Where ADHOC
Authors Daniela Tulone
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