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Etude d’une nouvelle méthode d’accès (MAC) multi-canal dédiée aux réseaux locaux et réseaux personnels sans fil

Mahamat Habib Senoussi Hissein 1
1 IRIT-RMESS - Réseaux, Mobiles, Embarqués, Sans fil, Satellites
IRIT - Institut de recherche en informatique de Toulouse
Abstract : The emergence of the Internet of Thingsrevolutionizeswireless local area networks and inspiringnumerous applications. One of the main issues for wirelessLANsis the access and sharing of the wireless radio medium. Several single-channel MAC protocols have been proposed and addressthis issue withinteresting solutions. However, some major problemsrelated to the channelaccess (hiddennode, synchronization, propagation of RDV) for a multi-hop transmission context, persist and are still the subject of intensive studies by the scientificcommunity, especiallywhenitcomes to a distributedwirelesssensors networks over extended topologies. Someresearch has proposed multi-channel MAC protocols, oftenaddressingthe ideal case, where all nodes in the network are within range of eachother. The transmissions and receptions of the data frames aregenerallypreceded by controls frames for the establishment of Rendez-Vous (RDV) among the nodesconcerned. Wefindthat the RDVs do not guarantee the channelsreservation in a deterministicwaywithoutconflictamong the nodes in the network, and maymakeitdifficult the multi-hop transmissions. A complex solution wouldbe to propagatetheseRDVs to the neighbors of the receivernodebeyond 2 hops. Facedwiththiscomplexity of multi-hop RDV management thatmakesour contribution. It is important for us to propose arandom multi-channelaccessmethodwithout RDV, in multi-hop topology. Our solution isimplemented on a real testbed made of multi-channel single-interface “WiNo” nodes, of whichweevaluate the performance that are compared to the single-channel case. An analytical model related to the multi-channelcontextwithout RDV wasalsodeveloped, And compared to the results of ourtestbed.
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Submitted on : Thursday, January 28, 2021 - 2:13:42 PM
Last modification on : Thursday, June 10, 2021 - 3:07:59 AM

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Mahamat Habib Senoussi Hissein. Etude d’une nouvelle méthode d’accès (MAC) multi-canal dédiée aux réseaux locaux et réseaux personnels sans fil. Réseaux et télécommunications [cs.NI]. Université Toulouse Jean Jaurès, 2017. Français. ⟨tel-03124769v2⟩

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