Article in Proceedings INPROC-2006-05

BibliographyDudkowski, Dominique; Marrón, Pedro José; Rothermel, Kurt: An Efficient Resilience Mechanism for Data Centric Storage in Mobile Ad Hoc Networks.
In: Proceedings of the 7th International Conference on Mobile Data Management (MDM '06); Nara, Japan, May 2006..
University of Stuttgart : Collaborative Research Center SFB 627 (Nexus: World Models for Mobile Context-Based Systems).
english.
IEEE, May 2006.
Article in Proceedings (Conference Paper).
CR-SchemaC.2 (Computer-Communication Networks)
KeywordsMobile Ad Hoc Networks; mobile Ad-hoc-Netze; Data Centric Storage; DCS; datenzentrische Speicherung; infrastrukturlose Systeme; MANETs; MANET
Abstract

Data Centric Storage (DCS) is a powerful storage paradigm for wireless ad hoc networks. In mobile ad hoc networks (MANETs), however, the mobility and varying density of nodes may significantly impact the efficiency of data access and the level of data consistency for existing DCS mechanisms. In this paper, we propose an efficient resilience mechanism for data centric storage that supports DCS in mobile environments. We introduce a novel indirection strategy that enables us to distinguish the storage of data at dedicated server nodes from the storage of additional information to locate these servers. Our approach places server location information dynamically in strategic parts of the network based on its current topology. Combining our server location advertisement with any geographic routing protocol, we provide a robust data update and query processing technique for data centric storage in MANETs. We show analytically and by means of experimental evaluations that, despite the additional indirection during packet forwarding, our approach provides superior storage and retrieval performance than the original DCS algorithm even for large amounts of dynamic data.

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Contactdominique.dudkowski@informatik.uni-stuttgart.de
Department(s)University of Stuttgart, Institute of Parallel and Distributed Systems, Distributed Systems
Project(s)SFB-627, B3 (University of Stuttgart, Institute of Parallel and Distributed Systems, Distributed Systems)
Entry dateFebruary 2, 2006