Next Article in Journal
Development of Washable Silver Printed Textile Electrodes for Long-Term ECG Monitoring
Next Article in Special Issue
Finding Possible Weakness in the Runoff Simulation Experiments to Assess Rill Erosion Changes without Non-Intermittent Surveying Capabilities
Previous Article in Journal
Temperature Correction to Enhance Blood Glucose Monitoring Accuracy Using Electrical Impedance Spectroscopy
Previous Article in Special Issue
Improving Radar Rainfall Estimations with Scaled Raindrop Size Spectra in Mei-Yu Frontal Rainstorms
Article

NVIS Multicarrier Modulations for Remote-Sensor Applications

La Salle Campus, Ramon Llull University, 08022 Barcelona, Spain
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(21), 6232; https://doi.org/10.3390/s20216232
Received: 29 September 2020 / Revised: 25 October 2020 / Accepted: 29 October 2020 / Published: 31 October 2020
(This article belongs to the Special Issue Remote Sensor Based Geoscience Applications)
The number of Internet of Things (IoT) devices has experienced a large growth during the last decade, as well as the data volume gathered from remote sensors. Satellites are still a suitable communication method and may be preferable for a remote ubiquitous sensor network (USN), which sometimes are located in places without much communications infrastructure where coverage is the principal drawback. Alternatively, the proposed solution for this article aims at a near-vertical incidence skywave (NVIS) channel for high frequencies (HF) with a low-cost platform, allowing a low-power transmissions coverage area up to 250 km for USN. The HF standards are focused on generic communication channels not being robust for NVIS communications. In this article we study and test an alternative based on orthogonal frequency-division multiplexing (OFDM) modulations to make them more robust and less dependent on the channel NVIS communications. For that purpose, we test the HF standard modulations and a designed OFDM modulation to prove the robustness of each. This study has been tested between Barcelona and Tarragona, using different transmission power levels and modulation orders. View Full-Text
Keywords: Remote Sensing; HF; NVIS; USN; OFDM; IoT; STANAG; MIL-STD 188 110 D Remote Sensing; HF; NVIS; USN; OFDM; IoT; STANAG; MIL-STD 188 110 D
Show Figures

Figure 1

MDPI and ACS Style

Maso, J.M.; Gonzalez, T.; Male, J.; Porte, J.; Pijoan, J.L.; Badia, D. NVIS Multicarrier Modulations for Remote-Sensor Applications. Sensors 2020, 20, 6232. https://doi.org/10.3390/s20216232

AMA Style

Maso JM, Gonzalez T, Male J, Porte J, Pijoan JL, Badia D. NVIS Multicarrier Modulations for Remote-Sensor Applications. Sensors. 2020; 20(21):6232. https://doi.org/10.3390/s20216232

Chicago/Turabian Style

Maso, Josep M., Tomas Gonzalez, Jordi Male, Joaquim Porte, Joan L. Pijoan, and David Badia. 2020. "NVIS Multicarrier Modulations for Remote-Sensor Applications" Sensors 20, no. 21: 6232. https://doi.org/10.3390/s20216232

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop