More than 70 percent of Earth is covered with water, while human knowledge of the underwater environment is negligible compared to the land. Underwater wireless acoustic sensor network (UWASN) is one of the newest technology to investigate the underwater. UWASNS is a subdivisions of WSNs in which a variable number of autonomous and self-organize sensor nodes and vehicles are deployed manually o...

Underwater Wireless Sensor Networks (UWSN) has attracted significant attention recently. One of the most important issues in these networks is the energy constraint. Battery power in UWSN is limited and usually batteries cannot be easily recharged or changed. Therefore energy saving in this type of networks is vital. Network life time can be estimated by estimating energy consumption of nodes. ...

The aim of this paper is to highlight the prospects and problems of optical wireless communication for applications in the field of Underwater Wireless Sensor Networks (UWSNs).This paper reviews the physical fundamentals and engineering implementations for efficient information exchange via wireless communication using physical waves as the carrier among nodes in an underwater sensor network. H...

In this paper, we tackle the malicious attacks in Underwater Sensor Networks (UWSNs). Underwater Sensor Networks (UWSNs) consists of variable number of sensors and vehicles that are deployed to perform collaborative monitoring tasks over a given area. In this paper, we use a novel routing protocol, called vector-based forwarding (VBF) protocol, to provide robust, scalable and energy efficient r...

Underwater sensor network (UWSN) has emerged as a powerful technique for aquatic applications. Different from ground based networks, UWSN features long propagation delay, low bandwidth and high error rate. Limited power capacity and node mobility also make it difficult to apply existing protocols or algorithm designed for terrestrial networks to UWSN. It requires new research at every layer of ...

Most existing underwater networks target deep and long range oceanic environments, which has led to the design of power hungry and expensive underwater communication hardware. Because of prohibitive monetary and energy cost of currently overengineered communication hardware, dense deployments of shallow water sensor networks remain an elusive goal. To enable dense shallow water networks, we pro...

The interest in monitoring applications using underwater sensor networks has been growing in recent years. The severe communication restrictions imposed by underwater channels make that efficient monitoring be a challenging task. Though a lot of research has been conducted on underwater sensor networks, there are only few concrete applications to a real-world case study. In this work, hence, we...

Recent technological improvements and application opportunities have fueled increased interest in the development and deployment of underwater acoustic sensor networks. Deployment efforts have been impeded by the prohibitive monetary cost and high power consumption of existing acoustic hardware. Alternately, we propose underwater networks that rely on widely available speakers and microphones i...

The growing need for ocean observation systems has stimulated considerable interest within the research community in advancing the enabling technologies of underwater wireless communication and underwater sensor networks. Sensors and ad hoc sensor networks are the emerging tools for performing extensive data-gathering operations on land, and solutions in the subsea setting are being sought. Eff...

Underwater sensor networks will find applications in oceanographic data collection, pollution monitoring, offshore exploration, disaster prevention, assisted navigation, and tactical surveillance. Underwater acoustic networking is the enabling technology for these applications. In this paper, the problem of data gathering for three-dimensional underwater sensor networks is investigated at the n...