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Appears in Collections:Computing Science and Mathematics Technical Reports
Title: Prohibitive-link Detection and Routing Protocol
Author(s): Fayed, Marwan
Mouftah, Hussein T
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Citation: Fayed M & Mouftah HT (2008) Prohibitive-link Detection and Routing Protocol. Technical Report, TR-2008-04. School of Information Technology and Engineering, University of Ottawa.
Issue Date: Nov-2008
Publisher: School of Information Technology and Engineering, University of Ottawa
Series/Report no.: Technical Report, TR-2008-04
Abstract: In this paper we investigate the limits of routing according to left- or righthand rule (LHR). Using LHR, a node upon receipt of a message will forward to the neighbour that sits next in counter-clockwise order in the network graph. When used to recover from greedy routing failures, LHR guarantees success if implemented over planar graphs. We note, however, that if planarity is violated then LHR is only guaranteed to eventually return to the point of origin. Our work seeks to understand why. An enumeration and analysis of possible intersections leads us to propose the Prohibitive-link Detection and Routing Protocol (PDRP) that can guarantee delivery over non-planar graphs. As the name implies, the protocol detects and circumvents the ‘bad' links that hamper LHR. Our implementation of PDRP in TinyOS reveals the same level of service as face-routing protocols despite preserving most intersecting links in the network.
Type: Technical Report
Affiliation: Computing Science - CSM Dept
University of Ottawa

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