DiSCA: a Distributed Scheduling for Convergecast in Multichannel Wireless Sensor Networks

Ridha Soua (1) , Pascale Minet (1) , Erwan Livolant (1)

1 EVA - Wireless Networking for Evolving & Adaptive Applications

—The new IEEE 802.15.4e standard does not specify how the schedule of medium accesses followed by wireless sensors is built. That is why, we propose a distributed interference-aware joint channel and time slot assignment, called DiSCA, for a traffic-aware convergecast in multichannel wireless sensor networks (WSNs). Unlike most previous studies, we consider two cases of transmissions: without acknowledgment and with immediate acknowledgment. We provide the minimum bound on the number of time slots needed for a convergecast with a sink equipped with multiple radio interfaces. Simulations results show that DiSCA is close to the optimal in terms of the number of slots and outperforms TMCP.

Domaines: Réseaux et télécommunications [cs.NI]

Ridha Soua, Pascale Minet, Erwan Livolant. DiSCA: a Distributed Scheduling for Convergecast in Multichannel Wireless Sensor Networks. 14th IFIP/IEEE Symposium on Integrated Network and Service Management, IEEE IM 2015, IFIP/IEEE, May 2015, Ottawa, Canada. ⟨hal-01120949⟩