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Service composition in opportunistic networks

Abstract : This thesis is related to the domain of Ubiquitous computing and Internet ofThings (IoT), and focuses on networks that can be formed spontaneously bymobile or fixed devices. These devices can be connected using aninfrastructure, or in a peer-to-peer mode using ad hoc communications.Connection disruptions may occur in the network frequently andunpredictably. These connection disruptions can be problematic when a givendevice tries to access remote resources provided by other devices, or when ittries to offer its own resources to these ones.Opportunistic computing extends the paradigm of opportunistic networkingby abstracting local resources as services accessible remotely using theprotocols of opportunistic networking that implement the "store, carry andforward" principle.In this thesis, we focus on service composition in order to combineelementary services and offer new, rich and high level composite services tousers. Service composition can be a very difficult task to perform inopportunistic networks due to connection disruptions. In this thesis, we propose a solution to compose services using twostrategies: orchestration and choreography. This solution also relies on autility function that selects service providers. We also propose an optimizedversion of our solution that exploits a distributed cache of data and aproactive service composition mechanism based on the user interest profile.
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Submitted on : Monday, February 3, 2020 - 11:37:34 AM
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  • HAL Id : tel-02464499, version 1


Fadhlallah Baklouti. Service composition in opportunistic networks. Ubiquitous Computing. Université de Bretagne Sud, 2019. English. ⟨NNT : 2019LORIS523⟩. ⟨tel-02464499⟩



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