Ricerc@Sapienza

The advent of low-power sensor nodes coupled with intelligent software and hardware technologies has led to the era of green wireless networks. From the hardware perspective, green sensor nodes are endowed with energy scavenging capabilities to overcome energy-related limitations. They are also endowed with low-power triggering techniques, i.e., wake-up radios, to eliminate idle listening-induced communication costs.

In this paper, we investigate the performance of three medium access control (MAC) protocols (CSMA, T-Lohi, and DACAP) representing simple, intermediate, and fully negotiated protocols, to access the underwater acoustic channel, during two at-sea campaigns. Various tests were conducted in the waters surrounding Pianosa island during the NATO ACommsNet10 experiment in September 2010 and off the coast of the Palmaria island during the NATO CommsNet13 experiment in 2013.