Optimal multi-receiver UWSN modem with AT-WU

Authors:
Antonio Sanchez;Salvador Climent;Sara Blanc;Pedro Yuste;Juan José Serrano
Affiliations:
Universitat Politècnica de València, València, Spain;Universitat Politècnica de València, València, Spain;Universitat Politècnica de València, València, Spain;Universitat Politècnica de València, València, Spain;Universitat Politècnica de València, València, Spain
Venue:
Proceedings of the Seventh ACM International Conference on Underwater Networks and Systems
Year:
2012

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Abstract

In this paper a new architecture for low-power Underwater Wireless Sensor Network acoustic modems is presented. It embeds two independent receivers: one FSK decoder based on a μpower micro-controller and a WU receiver which is able to monitor channel activity and synchronize the network without time reference sharing (Asynchronous Wake-Up). Although it has been proven that this synchronization scheme saves lots of energy, only two acoustic modems are enhanced to support this feature. In this paper it is shown how one of this modems, the ITACA modem, tackles this issue using one single transducer.