Results 201 to 210 of about 23,943 (241)

Optimizing Adaptive Communications in Underwater Acoustic Networks

OCEANS 2019 MTS/IEEE SEATTLE, 2019
We consider an Underwater Acoustic Network (UAN) where each node is equipped with a suite of signals and so there is the flexibility to aim for different bit rates at each transmission slot. A Cross-Entropy (CE) centralized algorithm is explored to optimize the combination of modulation scheme and transmission power level in the presence of unreliable ...
Petroccia R., Cassara' P., Pelekanakis K.   +2 more
openaire   +2 more sources

Network coding for underwater acoustic sensor networks

2013 MTS/IEEE OCEANS - Bergen, 2013
Underwater acoustic sensor networks offer significant advantages for numerous maritime applications, allowing to connect and coordinate multiple seafloor sensors and autonomous underwater vehicles into a network for real-time data collection, monitoring, exploration and navigation.
Veronika Kebkal, Oleksiy Kebkal, Konstantin Kebkal   +2 more
openaire   +1 more source

Software-defined underwater acoustic networking platform

Proceedings of the Fourth ACM International Workshop on UnderWater Networks - WUWNet '09, 2009
Currently acoustics is the primary modality for underwater communication even though it presents a difficult channel. To try and cope with the challenges of the channel many MAC protocols and PHY layer techniques have been proposed. In this paper we present a research platform that allows developers to easily implement and compare their protocols in an
Dustin Torres, Jonathan Friedman, Thomas Schmid, Mani B. Srivastava   +3 more
openaire   +1 more source

Underwater Drones for Acoustic Sensor Network

2021
Apparently, two-thirds of our planet is covered by water bodies, of which oceanic coverage deeply impacts terrestrial life. Oceans form a majestic resource of most of the amazing marine creatures and natural resources, especially mineral oil. This makes underwater monitoring one of the most demanding areas to explore.
Meeta Gupta, Adwitiya Sinha, Shikha Singhal   +2 more
openaire   +1 more source

Swimmer tracking with underwater acoustic networks

2010 10th International Symposium on Communications and Information Technologies, 2010
A scheme for positioning swimmers using underwater acoustic networks is proposed. The design and the performance of such a network are presented. Owing to its high accuracy, the spherical interpolation approach is employed as the positioning algorithm.
K. Clare Xu, Y. Jay Guo, Eryk Dutkiewicz
openaire   +1 more source

Eavesdropping attacks in underwater acoustic networks

2015 10th International Conference on Information, Communications and Signal Processing (ICICS), 2015
This paper investigates the eavesdropping attacks in underwater acoustic networks (UANets). In particular, we propose an analytical framework to model the eavesdropping attacks in UANets in terms of the eavesdropping probability. Results of extensive simulations match the analytical results, indicating the effectiveness and accuracy of our model ...
Qiu Wang, Hong-Ning Dai, Xuran Li, Hao Wang   +3 more
openaire   +1 more source

Scheduling granularity in underwater acoustic networks

Proceedings of the Sixth ACM International Workshop on Underwater Networks - WUWNet '11, 2011
Underwater acoustic networks have many distinct channel characteristics when compared to terrestrial networks. Long propagation delay, one such characteristic, allows scheduling methods with varying granularity that tradeoff schedule quality with protocol overhead.
Kurtis Kredo, Prasant Mohapatra
openaire   +1 more source

A Networking Protocol for Underwater Acoustic Networks

2000
Abstract : There exists an increasing demand for reliable, high capacity Underwater Acoustic Networks (UANs), as evidenced by the large volume of research invested over the last decade in overcoming the difficulties inherent with propagation of information bearing signals through shallow water regions.
John Gibson, Geoffrey Xie
openaire   +1 more source

On Multicasting in Underwater Acoustic Networks

2015 IEEE Global Communications Conference (GLOBECOM), 2014
Even though underwater acoustic communication suffers from long propagation delays and has very limited bandwidth, it still plays a key role in supporting long-distance, low-power communication in underwater sensor networks. Many previous studies have tried to mitigate the impact of long propagation delays, but recently, the focus has shifted from ...
Linbo Zhang, Mehul Motani
openaire   +1 more source

Underwater Acoustic Sensor Networks

2010
Underwater Communications Solutions Investigating fundamental aspects of underwater acoustic communications, this volume discusses different architectures for two- and three-dimensional underwater sensor networks and details the characteristics of the underwater channel.
openaire   +1 more source