Results 11 to 20 of about 101,313 (89)
Recovering Headerless Frames in LR-FHSS
CoRR, 2023 Long-Range Frequency Hopping Spread Spectrum (LR-FHSS) is a recent modulation designed for communications from low-power ground end-devices to Low-Earth Orbit (LEO) satellites. To decode a frame, an LR-FHSS gateway must receive at least one header replica and a large proportion of payload fragments.
Fraire, Juan Andrés +2 more
core +13 more sources
, 2023 LR-FHSS (Long-Range Frequency Hopping Spread Spectrum) est une récente modulation conçue pour que des équipements fonctionnant sur piles puissent transmettre des données à des satellites à basse orbite. Pour décoder une trame, la passerelle située sur le satellite doit recevoir au moins une copie de l'entête, et une grande proportion des fragments du ...
Fraire, Juan Andrés +2 more
core +7 more sources
Understanding Long Range-Frequency Hopping Spread Spectrum (LR-FHSS) with Real-World Packet Traces
ACM Transactions on Sensor Networks, 2023 Long Range-Frequency Hopping Spread Spectrum (LR-FHSS) is a new physical layer option that has been recently added to the LoRa family with the promise of achieving much higher network capacity than the previous versions of LoRa. In this article, we present our evaluation of LR-FHSS based on real-world packet traces collected with an LR-FHSS device and ...
Jumana Bukhari, Zhenghao Zhang
openaire +4 more sources
In-vivo experiments on LR-FHSS modulation
LR-FHSS is a (new) LoRA modulation from SEMTECH, made with satellite communications and dense urban networks in mind.Numerous theoretical studies have been made, be few practical results have been produced and studied.We conducted two LR-FHSS experiments “in vivo”: a long distance one, using stratospheric balloons, and a urban environment one, in Lyon ...
Dobler, Florent +6 more
core +9 more sources
The LR-FHSS System: Simulation and Validation
In recent years, advancements in satellites technology and a soared demand for bandwidth have spurred the creation and deployment of new cost-effective LEO constellations. This breakthrough has catalyzed the emergence of a novel branch of IoT devices capable of communicating with satellites. In fact, thanks to these new satellites at a closer distances
BONAVENTURA, LUCA
openaire +2 more sources
Enhanced LR-FHSS receiver for headerless frame recovery in space–terrestrial integrated IoT networks
Computer NetworksLong-Range Frequency Hopping Spread Spectrum (LR-FHSS) is a recent IoT modulation technique designed for communication between low-power ground end-devices and Low-Earth Orbit (LEO) satellites. To successfully decode a frame, an LR-FHSS gateway must receive at least one header replica and a substantial portion of the payload fragments.
Maldonado, Diego +6 more
openaire +2 more sources
LR-FHSS: Overview and Performance Analysis [PDF]
IEEE Communications Magazine, 2021 7 pages, 5 figures, 1 ...
Guillem Boquet +4 more
openaire +5 more sources
Exploring the state of the art of LR-FHSS
The thesis examines the role of LR-FHSS within the LoRaWAN protocol for large-scale IoT connectivity. It includes a survey of 27 publications until 2025, reviewing performance metrics, protocol enhancements, evaluation tools, and use cases. The literature is systematically categorized by target environments, modulation improvements, and evaluation ...
Bodvanski, Jana
openaire +2 more sources
Transceiver Design and Performance Analysis for LR-FHSS-Based Direct-to-Satellite IoT
IEEE Communications Letters, 2023 This paper presents a novel transceiver design aimed at enabling Direct-to-Satellite Internet of Things (DtS-IoT) systems based on long range-frequency hopping spread spectrum (LR-FHSS). Our focus lies in developing an accurate transmission method through the analysis of the frame structure and key parameters outlined in Long Range Wide-Area Network ...
Sooyeob Jung +4 more
openaire +4 more sources
Energy‐Aware Protocol Design and Evaluation of the PHY Layer in Satellite IoT
International Journal of Satellite Communications and Networking, Volume 43, Issue 2, Page 61-76, March/April 2025.ABSTRACT Direct‐to‐satellite communication for the Internet of Things (IoT) has attracted significant interest from both the scientific community and major telecommunications players. The integration of satellite connectivity in smartphones and IoT devices promises a transformative impact on critical applications such as environmental monitoring, asset
Simon Heine +2 more
wiley +1 more source