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...

Underwater Wireless Sensor Networks (UWSNs) can be used in ocean exploration and lake pollution monitoring. They use acoustic media to achieve sensor communications. UWSNs are essentially different from terrestrial RF-based sensor networks due to its highly variable, long propagation delay, and mobility nature. In this paper, we first describe our experimental design of low-cost underwater sens...

The context of underwater sensor networks (UWSNs) presents special challenges for data transmission. For that context, we examine the merit of using a simple, stochastic transmission strategy based on the ALOHA protocol. The strategy uses a stochastic scheduling approach in which time is slotted, and each network node broadcasts according to some probability during each time slot. We present a ...

Large-scale Underwater Wireless Sensor Network (UWSN) is a novel networking paradigm to explore the uninhabited and complex oceans. However, the characteristics of UWSNs, such as huge propagation delay, floating node mobility, and limited acoustic link capacity, are significantly different from ground-based wireless sensor networks and existing small scale Underwater Acoustic Networks (UANs). T...

A node non-uniform deployment based on clustering algorithm for underwater sensor networks (UWSNs) is proposed in this study. This algorithm is proposed because optimizing network connectivity rate and network lifetime is difficult for the existing node non-uniform deployment algorithms under the premise of improving the network coverage rate for UWSNs. A high network connectivity rate is achie...

Aim: Unmanned aerial vehicle (UAV)-aided wireless sensor networks (WSNs) are effectively used for surveillance, monitoring, and rescue applications in military commercial domains. In UAV-aided WSNs (UWSNs), efficient data gathered from nodes desired to enhance network performance. However, communication between UAV is challenging due the high mobility of a large number nodes. Clustering UWSNs l...

Underwater wireless sensor networks (UWSNs) represent an area of increasing research interest, as data storage, discovery, and query of UWSNs are always challenging issues. In this paper, a data access based on a guide map (DAGM) method is proposed for UWSNs. In DAGM, the metadata describes the abstracts of data content and the storage location. The center ring is composed of nodes according to...

The Medium Access Control (MAC) layer protocol is the most important part of any network, and considered to be a fundamental that aids in enhancing performance networks communications. However, MAC protocol’s design for underwater sensor (UWSNs) has introduced various challenges. This due long acoustic propagation delay, high mobility, low available bandwidth, error probability. These unique ch...

Dear Editor, This letter is concerned with the energy-aware multiple sensor co-scheduling for bearing-only target tracking in underwater wireless networks (UWSNs). Considering traditional methods facing problems of strong environment dependence and lack flexibility, a novel scheduling algorithm based on deep reinforcement learning proposed. Firstly, sensors' strategy UWSNs formulated as Markov ...