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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;
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
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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.

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.

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.

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