Results 11 to 20 of about 1,502 (175)
LR-FHSS-Sim: A Discrete-Event Simulator for LR-FHSS Networks [PDF]
2024 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit)This work presents the LR-FHSS-Sim, a free and open-source discrete-event simulator for LR-FHSS networks. We highlight the importance of network modeling for IoT coverage, especially when it is needed to capture dynamic network behaviors. Written in Python, we present the LR-FHSS-Sim main structure, procedures, and extensions. We discuss the importance
Richard Demo Souza +2 more
exaly +7 more sources
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
Serial search code acquisition of FHSS system [PDF]
International Review of Applied Sciences and Engineering, 2019 Frequency hopping spread spectrum (FHSS) communication systems offer significant performance advantages in view of their low probability of intercept, improved performance in multipath fading environments and their ability to avoid interference by hopping into low interference frequency channels.
Muhanned Al-Rawi, Muaayed Al-Rawi
openaire +2 more sources
The Impact of "Ethics Creep" on Research, Teaching and Learning in the Social Sciences and Humanities: A Survey of Canadian Researchers' Experience with Research Ethics Boards. [PDF]
Can Rev SociolABSTRACT Designed to protect the dignity of research subjects, there is limited data on either the effectiveness of Research Ethics Boards or on the scope of the unintended effects of REB processes on core university functions of research, teaching and learning.
Gallagher-Mackay K +2 more
europepmc +2 more sources
Ultrasonographic Evaluation of Canine Hip Dysplasia: Comparison with FCI Radiographic Scoring System [PDF]
Veterinary SciencesCanine hip dysplasia (CHD) is a common orthopedic condition characterized by joint laxity, abnormal femoral head development, and osteoarthritis. Radiography remains the gold standard in diagnosis; however, ultrasonography (US) can detect changes in bone
Inês Tomé +3 more
doaj +2 more sources
Sparse Representation of FHSS Signals in the Hermite Transform Domain [PDF]
Telfor Journal, 2017 Signal sparsity is exploited in various signal processing approaches. Signal compression, classification, coding, as well as the recently introduced compressed sensing are some examples where the possibility to represent a signal sparsely determines the ...
M. Brajović +3 more
doaj +2 more sources
Implementasi Frequency Hopping Spread Spectrum (FHSS) pada DSK TMS320C6416T [PDF]
Jurnal Teknik ITS, 2014 Teknik Spread Spectrum (spektral tersebar) merupakan salah satu jenis teknik pengiriman sinyal yang tahan terhadap gangguan berupa noise maupun jamming.
Ocki Aditya Muhammad +2 more
doaj +4 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
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