Research Article
Evaluating Direct Link IoT-LoRa Communication via LEO Nanosatellite: DEWASAT-1
@INPROCEEDINGS{10.1007/978-3-031-37139-4_6, author={Reem Al-Ali and Sidi Ahmed. Bendoukha and Zineddine N. Haitaamar and Mireya Arora and Jayakumar V. Karunamurthy and Tareg Ghaoud}, title={Evaluating Direct Link IoT-LoRa Communication via LEO Nanosatellite: DEWASAT-1}, proceedings={IoT as a Service. 8th EAI International Conference, IoTaaS 2022, Virtual Event, November 17-18, 2022, Proceedings}, proceedings_a={IOTAAS}, year={2023}, month={7}, keywords={BER DEWASAT-1 Direct Communication IoT LoRa-CSS Spreading Factor Signal to Noise Ratio}, doi={10.1007/978-3-031-37139-4_6} }- Reem Al-Ali
Sidi Ahmed. Bendoukha
Zineddine N. Haitaamar
Mireya Arora
Jayakumar V. Karunamurthy
Tareg Ghaoud
Year: 2023
Evaluating Direct Link IoT-LoRa Communication via LEO Nanosatellite: DEWASAT-1
IOTAAS
Springer
DOI: 10.1007/978-3-031-37139-4_6
Abstract
The rapid growth of the Internet of Things (IoT) opens the possibility for multiple applications catering to a variety of needs. Combined with Long Range (LoRa) technology, it can provide a global coverage network that connects devices and communicates valuable information. This manuscript evaluates the direct link of IoT-LoRa to the satellite by presenting various ground trials and uplink/downlink tests. The IoT substation communication to the tracked satellites based on predicted passes over the target is tested for coverage and environment losses. Using orbital data analyses and simulation plots, we estimate and validate the Radio Frequency (RF) output data of the received power, signal strength, and Bit Error Rate (BER) of the ground receiver through the telemetry phase. The paper validates the novel concept of using LoRa - Chirp Spread Spectrum (CSS) modulation by varying the spreading factor, elevation, and antenna gain for direct communication from the IoT terminal to Low Earth Orbit (LEO) CubeSat. This is done by excluding the master gateway and establishing a standard for future validations with untried and onboard data by attaining a positive link margin.
