One of the long-term goals of this project is to analyze and propose energy-efficient communication techniques for underwater acoustic sensor networks. These techniques aim at consuming as less energy as possible as well as guaranteeing a minimum quality of service. In order to do so, we assume and validate some statistics of the underwater acoustic channels and derive stochastic optimal transm...

1 School of Computer Science & Engineering, Kyungpook National University, Daegu, Republic of Korea 2Universidad Politécnica de Valencia, Camino de Vera, S/N, 46022 Valencia, Spain 3 South Dakota State University, DEH (Old ECS) 123, Brookings, SD 57007, USA 4Department of Informatics, Electronic and Sistemistic, University of Calabria, Italy 5 Department of Electrical and Computer Engineering, ...

Acoustic communication has been widely used in undersea wireless networks. In this paper, we explore the use of acoustic communication in terrestrial wireless sensor networks. This work does not aim to replace the radio communication which is widely used in wireless sensor networks. Rather, we aim to provide an alternative way of communication among the motes in case that the radio transceiver ...

There has been an increasing interest in creating short-range, low data-rate underwater wireless sensor networks for scientific marine exploration and monitoring. However, the lack of an inexpensive, low-power, underwater acoustic modem is preventing the proliferation of these sensor networks. Thus, we are building an underwater acoustic modem that considers cost and power at every level, from ...

In this Special Section on Wireless networking, we are pleased to present a diverse set of papers covering a range of topics within the area of wireless networking. While the huge proliferation of wireless devices and technologies enables a rich set of new applications, it also raises many new research challenges. This section addresses some of these open research challenges. The proliferation ...

Many potential applications such as ocean sampling network, environment monitoring, undersea exploration, disaster prevention, assisted navigation, and mine reconnaissance can be provided by deploying the Underwater Acoustic Sensor Networks. Because of the peculiarities of acoustic communication in underwater, the MAC protocol which play a role of managing and controlling the channels, must ove...

Reliable data delivery for underwater acoustic sensor networks is a major concern in applications such as surveillance, data collection, navigation, and ocean monitoring. Geocasting is a crucial communication primitive needed to support these applications, which consists in transmitting one or multiple consecutive data packets – all carrying an atomic message – to nodes located in a certain geo...

Routing is a fundamental function of any wireless network. For battery-powered underwater sensors using acoustic waves, routing is even more challenging due to an ever changing and communication-opaque ocean. Herein, we propose a shallow-water routing scheme that adapts to a unique physical phenomena of the medium. In particular, the proposed routing exploits downward and upward refractions for...