A free collision and distributed slot assignment algorithm for wireless sensor networks

Ines Slama (1, 2, 3) , Badii Jouaber (4, 1, 2, 3) , Djamal Zeghlache (4, 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
4 R3S-SAMOVAR - Réseaux, Systèmes, Services, Sécurité

This paper introduces I-MAC a new hybrid medium access control protocol for wireless sensor networks (WSNs). I- MAC combines both CSMA and TDMA techniques while introducing prioritization. It aims to improve energy efficiency as well as channel utilization. I-MAC is composed of two phases: a setup phase and a transmission phase. During the setup phase, several operations such as neighborhood discovery, slot assignment, local framing and global synchronization are run. During the transmission phase, a priority scheme is investigated to control the access to the channel. We focus in this paper on the description and evaluation of the different setup phase operations particularly DNIB, a new TDMA free collision slot assignment algorithm proposed for WSNs

Mots clés: Sensor networks; MAC scheduling

Domaines: Réseaux et télécommunications [cs.NI]

Ines Slama, Badii Jouaber, Djamal Zeghlache. A free collision and distributed slot assignment algorithm for wireless sensor networks. GLOBECOM 2008 : IEEE Global Telecommunications Conference, Nov 2008, New Orleans, Louisiana, United States. pp.367 - 372, ⟨10.1109/GLOCOM.2008.ECP.78⟩. ⟨hal-01395249⟩