A Fuzzy Routing Method in UAV Delay Tolerant Networks

Xuanya LI  Linlin CI  Wenbing JIN  

IEICE TRANSACTIONS on Communications   Vol.E95-B   No.9   pp.2769-2773
Publication Date: 2012/09/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.2769
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Emerging Technologies and Applications for Ad Hoc and Wireless Mesh Networks)
UAV,  ad hoc network,  delay tolerant network,  fuzzy,  approximate reasoning,  

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Hovering unmanned aerial vehicles (UAVs) with mutual sense and communication capability form a new-fashioned airborne ad hoc network. Traditional routing protocols assume that there has already existed an end-to-end path before the message forwarding starts which, however, is not always available in the airborne network featuring randomly violent topological changes. Local heuristic information without complex computational cost should be considered to help route in this specific delay tolerant network (DTN). In this letter, we take Crowd Density (CD) and Relative Velocity Direction (RVD) as the fuzzy inputs, and use approximate reasoning to calculate priority of alternative candidates. Finally, the proposed mechanism is compared with some existing protocols.