Results 71 to 80 of about 1,502 (175)

LR-FHSS: Header redundancy optimization

National audienceShort presentation on header redundancy optimisation in LR-FHSS ...
Dobler, Florent
core   +2 more sources

Construction of secure adaptive frequency hopping sequence sets based on AES algorithm

IET Communications, Volume 18, Issue 8, Page 490-502, May 2024.
This paper leverages the advanced encryption standard algorithm to explore the construction of secure frequency hopping (FH) sequences and proposes two mapping methods tailored to scenarios where the number of frequency slots is either an integer power of two or not. The proposed FH sequence sets constructed via these methods exhibit adaptability to an
Dongpo Song, Peng Wei, Yongming Fu, Shilian Wang   +3 more
wiley   +1 more source

A Polanyian Perspective on the Conflict Between Neoliberal Economics and Countrymindedness in Australian Drought and Water Policy

Australian Journal of Politics &History, Volume 70, Issue 1, Page 21-39, March 2024.
This article evaluates the successes and failures of Australian drought and water policy reforms. By analysing the influence of the ideas central to neoliberal economics and countrymindedness on the development and implementation of the National Drought Policy and the Murray Darling Basin Plan, we illustrate that drought and water policy reforms in ...
Angus Robertson, Benjamin Habib
wiley   +1 more source

Study on Fast Acquisition of Hybrid DS/FHSS

Chinese Journal of Aeronautics, 2005
AbstractIn hybrid Direct Sequence/Frequency Hopping Spread Spectrum (DS/FH SS) system, the fast acquisition is a key technique. A combined fast scanning and waiting method for FH acquisition is introduced, and a neural network for DS acquisition is presented also.
ZHANG, Bo, SHAO, Ding-rong, ELHABIAN, Tarek S.   +2 more
openaire   +1 more source

LR-FHSS Transceiver for Direct-to-Satellite IoT Communications: Design, Implementation, and Verification

IEEE Open Journal of Vehicular Technology
This paper proposes a long range-frequency hopping spread spectrum (LR-FHSS) transceiver design for the Direct-to-Satellite Internet of Things (DtS-IoT) communication system.
Sooyeob Jung, Seongah Jeong, Jinkyu Kang, Gyeongrae Im, Sangjae Lee, Mi-Kyung Oh, Joon Gyu Ryu, Joonhyuk Kang   +7 more
doaj   +1 more source

Constructions of Low-Hit-Zone Frequency-Hopping Sequence Set With Strictly Optimal Periodic Partial Hamming Correlation

IEEE Access
Frequency-hopping technology has been used widely in wireless communications, especially in military communications and in civil mobile communications.
Chun Xie, Changyuan Wang
doaj   +1 more source

Toward Improving the Scalability of LR-FHSS: Transmission Policies and Performance Analysis

IEEE Open Journal of the Communications Society
Low power wide area networks (LPWANs) have revolutionized IoT connectivity by enabling long-range communication with low cost end devices and minimal power consumption.
Lucas Bez Rocha, Jean Michel De Souza Sant'Ana, Muhammad Asad Ullah, Samuel Montejo-Sanchez, Joao Luiz Rebelatto, Richard Demo Souza   +5 more
doaj   +1 more source

Probabilistic Allocation of Payload Code Rate and Header Copies in LR-FHSS Networks

IEEE Access
We evaluate the performance of the LoRaWAN Long-Range Frequency Hopping Spread Spectrum (LR-FHSS) technique using a device-level probabilistic strategy for code rate and header replica allocation.
Jamil de Araujo Farhat, Jean Michel de Souza Sant'Ana, Joao Luiz Rebelatto, Nurul Huda Mahmood, Gianni Pasolini, Richard Demo Souza   +5 more
doaj   +1 more source

Implementasi dan Evaluasi Kinerja Frequency Hopping Spread Spectrum (FHSS) Menggunakan WARP

Jurnal Teknik ITS, 2015
Proses pengiriman informasi dari pengirim ke penerima terkadang terdapat gangguan, maka untuk mengatasi masalah tersebut dapat menggunakan metode Spred Spectrum, yang merupakan teknik pengiriman sinyal yang tahan terhadap gangguan berupa noise maupun ...
Rini Nurpita Sari, Suwadi Suwadi, Titiek Suryani   +2 more
doaj  

Unveiling robust security: Chaotic maps for frequency hopping implementation in FPGA

Ain Shams Engineering Journal
Frequency hopping is a main technique for wireless communication, avoiding interference and interception. This paper provides novel hardware design for frequency-hopping pseudorandom bit generator (PRBG).PRBG design by chaotic maps on FPGA.Two proposed ...
Harith G.Ayoub, Zaid A.Abdulrazzaq, Ahmed F.Fathil, Shahd A.Hasso, Aamer T.Suhail   +4 more
doaj   +1 more source