Large-scale mobile Underwater Wireless Sensor Network (UWSN) is a novel networking paradigm to explore aqueous environments. However, the characteristics of mobile UWSNs, such as low communication bandwidth, large propagation delay, floating node mobility, and high error probability, are significantly different from ground-based wireless sensor networks. The novel networking paradigm poses inte...

In this paper, we propose a novel distributed localization scheme LDB, a 3D localization scheme with directional beacons for Underwater Acoustic Sensor Networks (UWA-SNs). LDB localizes sensor nodes using an Autonomous Underwater Vehicle (AUV) as a mobile beacon sender. Mounted with a directional transceiver which creates conical shaped directional acoustic beam, the AUV patrols over the 3D dep...

Cluster-based structure is not a new research topic but it still challenges the scientists. In wireless sensor network, cluster-based is one of important approaches to achieve effective network performance such as energy saving, throughput maximizing, end-to-end delay and maintenance cost decreasing, etc. In this paper, we propose a clustering scheme which utilizes the geographical information ...

Underwater pollution incidents occur frequently, and obtaining accurate information about their exact location real-time situation is helpful for promptly formulating plans to contain mitigate the situation. Autonomously adjusting position of sensors optimal coverage monitoring regions interest (e.g., oil spill zones, chemical contamination areas) in real time a significant challenge. To this e...

Underwater Wireless Sensor Networks (UWSNs) is much more attractive area for the researchers due to its versatile applications like tactical surveillance, assisted navigation, equipment monitoring, oceanography data collection, pollution monitoring, offshore exploration, disaster prevention and seismic monitoring. The researchers are also collecting the scientific data from underwater environme...

The specific characteristics of underwater environments introduce new challenges for networking protocols. In this paper, a specialized architecture for underwater sensor networks (UWSNs) is proposed and evaluated. Experiments are conducted in order to analyze the suitability of this protocol for the subaquatic transmission medium. Moreover, different scheduling techniques are applied to the ar...

Wireless sensor networks (WSNs) consist of thousands of tiny, inexpensive and lowpower sensor nodes that perform collaborative tasks and organize themselves into multihop networks. These sensor nodes are deployed over a given area, including both the terrestrial and underwater environments. Consequently, WSNs can be divided into terrestrial wireless sensor networks (TWSNs) and underwater wirele...

Underwater sensor networks are envisioned to enable a broad category of underwater applications such as pollution tracking, offshore exploration, and oil spilling. Such applications require precise location information as otherwise the sensed data might be meaningless. On the other hand, security critical issue as underwater sensor networks are typically deployed in harsh environments. Localiza...