Results 231 to 240 of about 3,638,159 (285)

A lightweight hybrid framework for real-time data refinement in resource-constrained underwater and underground wireless sensor networks. [PDF]

Sci Rep
Chelloug SA, Nazir S, Khan R, Khattak MAK, Alturise F, Alkhalaf S.   +5 more
europepmc   +1 more source

Underwater detection and repair reinforcement technologies for reservoir-dam systems: development status and research challenges. [PDF]

Commun Eng
Xiang Y, Wang Y, Dai B, Chen Z, Zhu Y, Shen G, Hu J, Chen S.   +7 more
europepmc   +1 more source

Celestial Navigation: A State-of-the-Art Review Towards a Light Autonomous Underwater Vehicle (LAUV) Conceptual Application. [PDF]

Sensors (Basel)
Lampreia S, Policarpo H, Almeida PP, Roboredo NR, Ruivo JM, Henriques RB, Lobo V.   +6 more
europepmc   +1 more source

Enhancing underwater sensor network security using QKD-enabled acoustic-optical hybrid communication. [PDF]

Sci Rep
Rajnarayanan S, Kathirvel Murugan T, Govindaraj L, Gladius Theodore Solomon S, Aashik Fazuludeen M.   +4 more
europepmc   +1 more source

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Cooperative Positioning in Underwater Sensor Networks

IEEE Transactions on Signal Processing, 2010
We consider cooperative positioning using acoustic range measurements for underwater sensor networks, including networks formed by autonomous unmanned underwater vehicles (UUVs). Severe multipath scattering from the seabed and ocean surface can result in inaccurate range measurements.
Xing Tan 0001, Jian Li 0001
openaire   +1 more source

On applying network coding to underwater sensor networks

Proceedings of the 1st ACM international workshop on Underwater networks - WUWNet '06, 2006
High error rates and long propagation delays in underwater sensor networks call for efficient error-recovery schemes. We believe network coding is a promising technique for this purpose because of the broadcast nature of acoustic channels and computation capabilities at the sensor nodes.
Zheng Guo, Peng Xie, Jun-Hong Cui, Bing Wang 0001   +3 more
openaire   +2 more sources

Localization in underwater sensor networks

Proceedings of the 1st ACM international workshop on Underwater networks - WUWNet '06, 2006
In underwater sensor networks (UWSNs), determining the location of every sensor is important and the process of estimating the location of each node in a sensor network is known as localization. While various localization algorithms have been proposed for terrestrial sensor networks, there are relatively few localization schemes for UWSNs.
Vijay Chandrasekhar 0001, Winston Khoon Guan Seah, Yoo Sang Choo, How Voon Ee   +3 more
openaire   +1 more source

Weighted Localization for Underwater Sensor Networks

2014
ELSN (Efficient Localization for large-scale underwater Sensor Networks) gets the node location by solving equations. However, sometimes the unique solution (no solution or multiple solutions) cannot be obtained from equations because of measurement error. In this case, the node cannot be located.
Shaobin Cai, Guangzhi Zhang, Shilong Liu
openaire   +1 more source

Distributed Beamforming for Underwater Sensor Networks

Proceedings of the International Conference on Underwater Networks %Systems - WUWNET '14, 2014
We propose a binary-feedback-based distributed beamforming for underwater sensor networks (UWSNs). Distributed beamforming is a technique that enables distributed sensor nodes to cooperatively transmit signals in order to improve the signal-to-noise ratio (SNR).
Yonggang Kim, Hyuk Lim
openaire   +1 more source