Priority-based hybrid MAC for energy efficiency in wireless sensor networks

Ines Slama (1, 2, 3) , Badii Jouaber (1, 2, 3) , Djamal Zeghlache (1, 2, 3)

1 TSP - RS2M - Département Réseaux et Services Multimédia Mobiles
2 SAMOVAR - Services répartis, Architectures, MOdélisation, Validation, Administration des Réseaux
3 CNRS - Centre National de la Recherche Scientifique

This paper introduces I-MAC, a new medium access control protocol for wireless sensor networks. I-MAC targets at improving both channel utilization and energy efficiency while taking into account traffic load for each sensor node according to its role in the network. I-MAC reaches its objectives through prioritized and adaptive access to the channel. I-MAC performances obtained through simulations for different network topologies, scenarios and traffic loads show significant improvements in energy efficiency, channel utilization, loss ratio and delay compared to existing protocols.

Mots clés: Wireless sensor networks; Channel utilization; Throughput; Energy efficiency; Prioritization; MAC protocol

Domaines: Réseaux et télécommunications [cs.NI]

Ines Slama, Badii Jouaber, Djamal Zeghlache. Priority-based hybrid MAC for energy efficiency in wireless sensor networks. Wireless Sensor Network, 2010, 2 (6), pp.755-767. ⟨10.4236/wsn.2010.210091⟩. ⟨hal-00565882⟩