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Author Thomas Plagemann; Katrine S. Skjelsvik; Matija Puzar; Aslak Johannessen; Ovidiu Drugan; Vera Goebel; Ellen Munthe-Kaas
Title Cross-layer overlay synchronization in sparse MANETs Type Conference Article
Year 2008 Publication Proceedings of ISCRAM 2008 – 5th International Conference on Information Systems for Crisis Response and Management Abbreviated Journal ISCRAM 2008
Volume Issue Pages 546-555
Keywords Information systems; Routers; Synchronization; Telecommunication networks; Cross layer optimization; Distributed events; Network partitions; Publish-subscribe; Rescue operations; Routing table; Sparse MANETs; Stable routing; Mobile ad hoc networks
Abstract Mobile Ad-Hoc Networks maintain information in the routing table about reachable nodes. In emergency and rescue operations, human groups play an important role. This is visible at the network level as independent network partitions which are for some time stable before their members change through merging or partitioning. We use the information from stable routing tables to optimize the synchronization of Mediators in a Distributed Event Notification System. In a stable partition each node has the same information, thus a single Mediator can efficiently coordinate the synchronization, while all other Mediators just receive updates. We show in our experiments that just a few seconds are needed until routing tables stabilize and all nodes have a common view of the partition. We present a heuristic to determine the proper time to synchronize. Furthermore, we show how exceptions, like disappearing coordinating Mediators and unexpected messages, can be efficiently handled.
Address Department of Informatics, University of Oslo, Norway
Corporate Author Thesis
Publisher Information Systems for Crisis Response and Management, ISCRAM Place of Publication Washington, DC Editor F. Fiedrich, B. Van de Walle
Language English Summary Language English Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2411-3387 ISBN 9780615206974 Medium
Track Adaptive Information Architectures for Interagency Crisis Management Expedition Conference 5th International ISCRAM Conference on Information Systems for Crisis Response and Management
Notes Approved no
Call Number Serial 844
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