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WSN12-5: Integrated Scheduling of Application- and Network-Layer Tasks in Delay-Tolerant MANETs

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5 Author(s)
Brustoloni, J. ; Dept. Comput. Sci., Pittsburgh Univ., Pittsburgh, PA ; Khattab, S. ; Santamaria, C. ; Smyth, B.
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Natural or man-made disasters can partition networks while threatening human lives. Because conventional mobile ad-hoc networks (MANETs) cannot route messages across partitions, they may not adequately support relief efforts. To forward messages across partitions, delay-tolerant networks (DTNs) exploit in-network storage and mobility. Many previous DTN routing protocols either opportunistically use, but do not modify, nodes' mobility, or require dedicated mobile gateways. This paper contributes a cross-layer DTN routing approach based on the observation that application-layer orders from a MANET's leader also control workers' mobility and ability to forward messages. Our approach attempts to minimize deadline misses and energy consumption by scheduling worker tasks considering both application- and network-layer needs. Simulations demonstrate performance benefits of our approach in a variety of scenarios.

Published in:

Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE

Date of Conference:

Nov. 27 2006-Dec. 1 2006