Gestion de la mobilité dans les réseaux de capteurs sans fil

Abstract : Wireless sensor networks are composed of small autonomous embedded devices which cooperate to monitor their environment in a less intrusive fashion. Data collected by each sensor node (such as temperature, movements, sounds, etc.) are reported to a sink station hop-by-hop using wireless transmissions. More and more application require sensors to be placed on mobile elements. However, in the manner of IP devices, mobile nodes may cross differents networks during their trips. This thesis focuses on this problematic and propose solutions to manage thoses mobile nodes. Our first contribution, the Mobinet protocol, uses the overhearing of the wireless medium to detect nodes in the vicinity of a mobile node and use this information to manage its mobility. Besides, integrating numerous mobile nodes will increase data trafic the visited networks. Our second proposition, the CLOMAC protocol, aims to reduces congestions which may appear by creating dynamic alternative path toward the sink station.
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Damien Roth. Gestion de la mobilité dans les réseaux de capteurs sans fil. Informatique mobile. Université de Strasbourg, 2012. Français. ⟨NNT : 2012STRAD031⟩. ⟨tel-00793315⟩

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