Investigation on radio wave propagation in shallow seawater: Simulations and measurements

Jiménez, Eugenio; Quintana, Gara; Mena, Pablo; Dorta, P.; Álvarez, Irina Argüelles; Zazo, Santiago; Pérez, Marina; Quevedo, Eduardo

doi:10.1109/ucomms.2016.7583453

Cited by 38 publications

(22 citation statements)

References 10 publications

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“…Regarding simulations setup, the most simple case is when the medium is homogeneous, that is, sea water or free-space to start with. This is explained in previous papers [ 12 ] where its inaccuracy was proved. In order to get close to a real environment, a layered medium was also simulated: sea water with seabed.…”

Section: Methodsmentioning

confidence: 73%

“…Due to this lack of consolidation of underwater communication in the scientific field and the great potential of radiofrequency communication in shallow waters, in 2014, a project entitled UNDERWater radiocommunications for Optimized monitoring using multiReLay Devices (UNDERWORLD) was proposed. Its aim was and is to re-evaluate the possibility of using EM communications in underwater wireless sensor networks, and the first results can be found in [ 12 , 13 ]. Nodes for this network should require low power to extend battery life, should not be too bulky and predicted distance between nodes is around 15–30 m. This network will be useful for monitoring shallow waters from the seabed.…”

Section: Introductionmentioning

confidence: 99%

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Underwater Electromagnetic Sensor Networks—Part I: Link Characterization

Quintana-Díaz

Mena-Rodríguez

Álvarez

et al. 2017

Sensors

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Underwater Wireless Sensor Networks (UWSNs) using electromagnetic (EM) technology in marine shallow waters are examined, not just for environmental monitoring but for further interesting applications. Particularly, the use of EM waves is reconsidered in shallow waters due to the benefits offered in this context, where acoustic and optical technologies have serious disadvantages. Sea water scenario is a harsh environment for radiocommunications, and there is no standard model for the underwater EM channel. The high conductivity of sea water, the effect of seabed and the surface make the behaviour of the channel hard to predict. This justifies the need of link characterization as the first step to approach the development of EM underwater sensor networks. To obtain a reliable link model, measurements and simulations are required. The measuring setup for this purpose is explained and described, as well as the procedures used. Several antennas have been designed and tested in low frequency bands. Agreement between attenuation measurements and simulations at different distances was analysed and made possible the validation of simulation setups and the design of different communications layers of the system. This leads to the second step of this work, where data and routing protocols for the sensor network are examined.

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Section: Methodsmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Underwater Electromagnetic Sensor Networks—Part I: Link Characterization

Quintana-Díaz

Mena-Rodríguez

Álvarez

et al. 2017

Sensors

Self Cite

View full text Add to dashboard Cite

show abstract

“…Calibration curves were obtained experimentally to improve its response. A full study with further measurements, comparison with simulations and analysis of the results were carried out with the same testbed in [12].…”

Section: Resultsmentioning

confidence: 99%

Experimental testbed for seawater channel characterization

Mena-Rodríguez

Dorta-Naranjo

Quintana

et al. 2016

2016 IEEE Third Underwater Communications and Networking Conference (UComms)

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Abstract-Shallow seawaters are problematic for acoustic and optical communications. Sensor networks based on electromagnetic (EM) communications are evaluated in this environment. In order to characterize the subaquatic channel, several measurement systems have been designed, built and tested in the sea obtaining very reliable results. Experiments carried out with dipoles and loop antennas showed serious disagreement with the state of the art, especially when dipole antennas are used. Dipoles performance was poor while magnetic loops showed relevant results. Measurement system is described in detail and real attenuation of the subaquatic channel is obtained for several distances and antennas. Finally, measured and simulated results are compared with good agreement.

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“…The realworld performance for MI communications underwater, especially in subsea environments, is still an underexplored area. Jimenez et al measured the MI signal attenuation between two loop coils in subsea environments in [7], but do not consider the resonance coupling between two coil antennas. Wang et al measured a MI link in a seawater pool with the deployment distance of 75 cm [14].…”

Section: Introductionmentioning

confidence: 99%

ROV assisted magnetic induction communication field tests in underwater environments

Wei

Soto

García

et al. 2018

Proceedings of the Thirteenth ACM International Conference on Underwater Networks &Amp; Systems

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Magnetic Induction (MI) is a promising technique for near-field wireless underwater communications. Although the literature has some theoretical analyses and lab experiments for underwater MI communication, there is a lack of field tests in underwater environments, especially in subsea environments. In this paper, we leverage the remotely operated vehicle (ROV) and the remotely controlled boat (RCB) to develop an MI wireless communication system, and conduct field tests for MI communication performance in both fresh water and sea water. The experiment results show that even in the most challenging subsea environment, the MI communication has very good near-field transmission performance with a small coil antenna and low power consumption.

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Investigation on radio wave propagation in shallow seawater: Simulations and measurements

Cited by 38 publications

References 10 publications

Underwater Electromagnetic Sensor Networks—Part I: Link Characterization

Underwater Electromagnetic Sensor Networks—Part I: Link Characterization

Experimental testbed for seawater channel characterization

ROV assisted magnetic induction communication field tests in underwater environments

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