Routage multi-chemin dans les réseaux de capteurs multimédias sans fil.

Abstract

Multipath geographic routing is an effective strategy for transmitting data flows in wireless multimedia sensor networks (WMSNs) since it enables to meet the Quality of Service (QoS) requirements in this type of networks. The first part of this thesis proposes two states of the art concerning multipath routing solutions developed in the literature for WMSNs. First, a new classification of these protocols was proposed based on the purpose of routing. Second, the multipath geographic routing solutions have been classified according to the original solutions and their derivatives. The second part of this thesis consists to improve, develop and design new multipath geographic routing solutions in WMSNs. The first protocol proposed is a multi-path version of the GPSR protocol called MMGPSR. Next, we designed an AGEM protocol extension where a triangular link quality metric is added to select the next hop called TLQM-AGEM. Third, a new multipath geographic routing protocol is proposed, called LQLB-MGR, this routing solution consists of two phases where the first is intended for building the set of paths while the second is for load balancing between the paths selected during the first phase. Finally, another new multi-path geographic protocol is proposed based on the two greedy routing approaches called GCGM, this protocol also proposed weighted constants for all metrics used for the selection of paths. The simulation results illustrated the benefits of our routing solutions in terms of several performance criteria such as the network lifetime, the packet delivery rate (PDR) and the power consumption.