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Routing in ad-hoc sensor networks is a complicated task because of many reasons. The nodes are low powered and they cannot maintain routing tables large enough for well-known routing protocols. Because of that, greedy forwarding at intermediate nodes is desirable in ad-hoc networks. Also, for traffic engineering, multipath capabilities are important. So, it is desirable to define routes at the source like in Source Based Routing (SBR) while performing greedy forwarding at intermediate nodes. They investigate Trajectory-Based Routing (TBR) which was proposed as a middle-ground between SBR and greedy forwarding techniques. This paper provides techniques to efficiently forward packets along a trajectory defined as a parametric curve. They use the well-known Bezier parametric curve for encoding trajectories into packets at source.

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Format:PDFSize:1,167 KB
Date:Jan 2009
Pages:4

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