Understanding Long Range-Frequency Hopping Spread Spectrum (LR-FHSS) with Real-World Packet Traces
, 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 paper, we present
Zhang, Zhenghao, Bukhari, Jumana
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Spread Spectrum Process Using Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS) [PDF]
, 2009 This paper presents spread spectrum process using Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS). DSSS is type spread spectrum the most widely known and most widely used.
Abdalla, Ahmed N. +2 more
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Preliminary Evaluation of SDR-Based Jamming of Drone FHSS Uplinks
Engineering ProceedingsThis article presents a preliminary laboratory evaluation of an SDR-based jammer designed for controlled interaction with a drone’s FHSS uplink. The study examines the effects of instantaneous bandwidth, sweep duration, and spectral matching on time ...
Mirela Șorecău +2 more
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Multi-modem-based FHSS-drone takeover with precision spoofing
ETRI JournalTraditional radio frequency (RF)-based anti-drone technologies focus on jam-ming the command and control (C2) RF signal or global navigation satellite system (GNSS) signal of a target drone.
Jae Gu Kang, Byeong Cheol Choi
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Telemática, 2019 Los sistemas de radio cognitivo (CR-por sus siglas en inglés) que emplean espectro esparcido por salto de frecuencia (FHSS-por sus siglas en inglés) en su esquema de comunicaciones, precisan la detección ágil del patrón para su coordinación.
Jorge Y. Hernández García
doaj
Making Sense or Non-Sense? Communicating COVID-19 Guidelines to Young Adults at Danish Folk High Schools. [PDF]
Int J Environ Res Public Health, 2023 Vildekilde T +6 more
europepmc +1 more source
Особливості цифрової обробки сигналів OFDM з FHSS
, 2017 Слюсарь І.І. Особливості цифрової обробки сигналів OFDM з FHSS / І.І. Слюсарь, В.І. Слюсар, Р.О. Козуб // Проблеми інформатизації : тези доп. 5-ої міжнар. наук.-техн. конф., 13 – 15 листоп. 2017 р. / Черкас. держ. технол. ун-т; ВА ЗС АР; Ун-т технол.
Слюсар, В.І. +2 more
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Robust Blind Frequency and Transition Time Estimation for Frequency Hopping Systems
EURASIP Journal on Advances in Signal Processing, 2010 In frequency hopping spread spectrum (FHSS) systems, two major problems are timing synchronization and frequency estimation. A blind estimation scheme is presented for estimating frequency and transition time without using reference signals.
Fu Kuo-Ching, Chen Yung-Fang
doaj
Construction of Optimal Frequency Hopping Sequence Set with Low-Hit-Zone. [PDF]
Entropy (Basel), 2023 Tian X, Han H, Niu X, Liu X.
europepmc +1 more source
Enhanced LR-FHSS receiver for headerless frame recovery in space–terrestrial integrated IoT networks
International audienceLong-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.
Rivano, Hervé +6 more
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