A low power listening MAC with scheduled wake up after transmissions for WSNs

Authors:
Cristina Cano;Boris Bellalta;Anna Sfairopoulou;Jaume Barceló
Affiliations:
Departament de Tecnologies de la Informació i Comunicacions, Universitat Pompeu Fabra, Barcelona, Spain;Departament de Tecnologies de la Informació i Comunicacions, Universitat Pompeu Fabra, Barcelona, Spain;Departament de Tecnologies de la Informació i Comunicacions, Universitat Pompeu Fabra, Barcelona, Spain;Departament de Tecnologies de la Informació i Comunicacions, Universitat Pompeu Fabra, Barcelona, Spain
Venue:
IEEE Communications Letters
Year:
2009

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Abstract

This work presents a new MAC protocol for WSNs that combines an unscheduled channel access, based on low-power listening, with an opportunistic scheduled wake up after transmissions mechanism. The proposed MAC provides a good tradeoff between energy consumption, complexity and performance in terms of throughput and delay. It achieves the benefits of scheduled MAC protocols without the cost of maintaining and sharing the schedule, as well as the low consumption and simple operation of unscheduled MAC protocols.