Deployment efforts of underwater acoustic sensor networks have been impeded by the prohibitive monetary cost and high power consumption of existing acoustic hardware, which typically targets deep water long range communication. To address this issue, we propose software-driven underwater networks that rely on widely available speakers and microphones in electronic devices, coupled with software...

Terrestrial wireless sensor networks with fixed and mobile nodes were initially developed for military applications such as battlefield surveillance and are now commonplace in many industrial and civilian application areas. It is easy to appreciate that such networks could be of immense value for military and civilian underwater tasks such as surveillance, monitoring and surveying. Autonomous u...

Underwater acoustic networks have recently emerged as a promising approach for oceanic applications such as exploration and surveillance. This new type of networks differs from terrestrial wireless sensor networks in that the network nodes are powerful and well equipped with many resources for diverse applications in challenging environments. Existing operating systems for terrestrial wireless ...

A channel model is introduced which considers shadowing fading on coverage probability for underwater sensor networks using electromagnetic signals. A model for finding the probability of detection and coverage using log normal shadowing fading has been derived. A comparative study between the sensing channel model and existing model for terrestrial sensor networks is also presented. It is obse...

This paper explores architecture, research challenges and potential applications for underwater sensor networks. Sensor networks have the promise of revolutionizing many areas of science, industry, and government with their ability to bring computation and sensing into the physical world. This report summarizes our research directions in underwater sensor networks. We highlight potential applic...

Underwater wireless sensor networks consist of a certain number of sensors and vehicles that interact to collect data and perform collaborative tasks. Designing energy-efficient routing protocols for this type of networks is essential and challenging because sensor nodes are powered by batteries, which are difficult to replace or recharge, and because underwater communications are severely affe...

Currently, UWASN (Underwater Acoustic Sensor Network) has been researched as a branch of sensor networks. UWASNs use a transmission media different from terrestrial wireless sensor networks. That is, the former uses acoustic waves and the latter uses radio waves for communication. G/W (Gateway)s in UWASNs are nodes for relaying data transmission between a UWASN and a terrestrial wireless sensor...

In this paper, we investigate the reliable data transport problem in underwater sensor networks. Underwater sensor networks are significantly different from terrestrial sensor networks in two aspects: acoustic channels are used for communication and most sensor nodes are mobile due to water current. These distinctions feature underwater sensor networks with low available bandwidth, large propag...

—Localizing machine type communication (MTC) devices or sensors is signi cantly important due to the increasing popularity of machine to machine (M2M) communication networks in location-based applications such as health monitoring, rescue operations, vehicle tracking, and wild re monitoring. Moreover, ef cient localization approaches for sensor-based MTC devices reduce the localization error an...

Mobile underwater sensor networks are usually featured with three-dimensional topology, high node mobility and long propagation delays. For such networks, geographic routing has been shown to be very suitable. However, routing voids pose great challenges on the greedy policy used in most geographic routing protocols. The problem is more severe for underwater sensor networks because of node mobi...