Results 131 to 140 of about 1,502 (175)

Frequency Selection for FHSS Mode

2019 Systems of Signal Synchronization, Generating and Processing in Telecommunications (SYNCHROINFO), 2019
Developed offers to choice frequency resource for radio engineering systems at FHSS. Justified efficiency indicator for assessment quantitative preliminarily mode testing frequency works. Results of analytic modeling shown. Proposals for practical implementation are formulated.
S V Dvornikov, S D Erokhin
exaly   +2 more sources

Asynchronous Contention Resolution-Aided ALOHA in LR-FHSS Networks [PDF]

IEEE Internet of Things Journal
In this work, we apply an asynchronous contention resolution-aided ALOHA protocol to the recently proposed long-range frequency hopping spread spectrum (LR-FHSS) scheme, which is an amendment of widespread chirp spread spectrum (CSS)-based long-range ...
Jean Michel de Souza Sant' Ana, João Luiz Rebelatto, Richard Demo Souza   +2 more
exaly   +3 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, Mardones, Marcos Rojas, Alphand, Olivier, Donsez, Didier, Fraire, Juan A., Heusse, Martin, Iova, Oana   +6 more
core   +9 more sources

An LR-FHSS Receiver for a Massive IoT Connectivity

2023 IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2023
Guillaume Ferré, Mohamed Amine Ben Temim   +1 more
exaly   +2 more sources

LR-FHSS With Network-Coded Header Replication

IEEE Transactions on Vehicular Technology
João Luiz Rebelatto, Richard Demo Souza
exaly   +3 more sources

Outage Probability Analysis of LR-FHSS and D2D-Aided LR-FHSS Protocols in Shadowed-Rice Fading Direct-to-Satellite IoT Networks

IEEE Internet of Things Journal
Ha Nguyen, Ebrahim Bedeer, Robert Barton   +2 more
exaly   +3 more sources

Characterization of FHSS in Wireless Personal Area Networks

2013 22nd Wireless and Optical Communication Conference, 2013
44
Celio Marcio Soares Ferreira, Ricardo Augusto Rabelo Oliveira, Haroldo Gambini Santos, Alejandro C. Frery   +3 more
openaire   +3 more sources

FHSS Signal Separation using Constrained Clustering

MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM), 2019
Frequency Hopping Spread Spectrum (FHSS) signaling is used across many devices operating in both regulated and unregulated bands. In either situation, if there is a malicious device operating within these bands, or more simply a user operating out of the required specifications, the identification and separation of this user is important to insure ...
Parker D. White, R. Michael Buehrer, William C. Headley   +2 more
openaire   +2 more sources

FHSS Systems: State-of-the-Art and Power Trade-offs

2011
In this chapter an in-depth description of the frequency-hopping spread-spectrum architecture is given. Attention is put on PN-code synchronization algorithms and a review of FHSS state-of-the-art systems is given. After deriving a set of specifications for an FHSS system meant for WSNs, the two most common synthesizer architectures are reviewed in ...
Lopelli, Emanuele, van der Tang, Johan, van Roermund, Arthur   +2 more
openaire   +1 more source