Results 51 to 60 of about 2,131,184 (147)

Design and Implementation of SoM-Based Coded CSS Transceiver

IEEE Access
Low-Power Wide-Area Networks (LPWANs) have been extensively employed in Internet of Things (IoT) systems. Among LPWAN techniques, LoRa modulation is notable for its low power consumption and long-range capability, enabled by the high receiver sensitivity.
Vu N. An, Huynh P. M. Cuong
doaj   +1 more source

Internet of Things in Healthcare Research: Trends, Innovations, Security Considerations, Challenges and Future Strategy

International Journal of Intelligent Systems, Volume 2025, Issue 1, 2025.
The Internet of Things (IoT) has become a transformative force across various sectors, including healthcare, offering new opportunities for automation and enhanced service delivery. The evolving architecture of the IoT presents significant challenges in establishing a comprehensive cyber‐physical framework. This paper reviews recent advancements in IoT‐
Attiq Ur Rehman, Songfeng Lu, Md Belal Bin Heyat, Muhammad Shahid Iqbal, Saba Parveen, Mohd Ammar Bin Hayat, Faijan Akhtar, Muhammad Awais Ashraf, Owais Khan, Dustin Pomary, Mohamad Sawan, Said El Kafhali   +11 more
wiley   +1 more source

Unleashing the Potential of the Internet of Things: A Systematic Review of Low Power Wide Area Network Technologies for Smart Systems

Journal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.
As the Internet of Things (IoT) ecosystem rapidly expands, the anticipated connection of over 75 billion devices highlights a critical demand for efficient and scalable connectivity solutions. Low‐power wide‐area network (LPWAN) technologies, notably Sigfox, Long Range (LoRa), and narrowband Internet of Things (NB‐IoT), are fundamental enablers driving
Aisyah Illani Sulaiman, Roshahliza M. Ramli, Waheb A. Jabbar, Mominul Ahsan   +3 more
wiley   +1 more source

Generalized Chirp Spread Spectrum for Underwater Acoustic Communications

In this paper, we propose a generalized-chirp spread spectrum (G-CSS) that can have various modulation orders and offers superior bit error rate (BER) performance to improve the communication performance of existing chirp-based modulation/demodulation ...
Hojun Lee, Boguen Seo, Yongcheol Kim, Jinwon Kim, Sangman Han   +4 more
core   +1 more source

Bit interleaved chirp spread spectrum coded modulations with iterative decoding based on LDPC codes for coherent and non-coherent regimes

, 2022
International audienceIn this paper, we investigate on bit-interleaved chirp spread spectrum (CSS) coded modulations with iterative decoding (ID) based on low-density parity-check (LDPC) codes.
Jean Frederic Chouteau, Chouteau, Jean Frédéric, Poulliat, Charly, Jocelyn Bourduge, Charly Poulliat, Bourduge, Jocelyn, Gadat, Benjamin, Benjamin Gadat   +7 more
core   +1 more source

Temperature Monitoring of Mass Concrete Structure Using Wireless Sensing System

Structural Control and Health Monitoring, Volume 2025, Issue 1, 2025.
Rapid temperature changes during the early stages of mass concrete construction can cause thermal cracking, which negatively impacts structural integrity and longevity. Reliable temperature monitoring is essential for effective crack control. Traditional methods, such as manual inspections and wired structural health monitoring systems, are often ...
Tengyi Wang, Dan Li, Jiajun Zhou, Jian Zhang, Young-Jin Cha   +4 more
wiley   +1 more source

Molecular Copper(I)‐Sensitized Photoanodes for Alcohol Oxidation under Ambient Conditions

ChemSusChem, Volume 17, Issue 24, December 20, 2024.
A donor‐Cu(I)‐acceptor visible light photosensitizer is synthesized and characterized. Upon light irradiation, an electron/hole pair is formed first by metal‐to‐ligand charge transfer. The ligands are tailored such that the hole is delocalized into a phenothiazine donating moiety, and the electron is delocalized in a phenazine accepting moiety, leading
Joseph F. Ricardo‐Noordberg, Saeid Kamal, Marek B. Majewski   +2 more
wiley   +1 more source

A PAPR correction scheme for LoRa self‐jamming waveforms

IET Communications, Volume 18, Issue 19, Page 1588-1603, December 2024.
A self‐jamming scheme of LoRa waveforms enabling secure transmissions is recently proposed in literature, which performs well in simulations. However, experiments on SDR equipment immediately showed that a transmission is impossible due to PAPR introduced by the waveform modification.
Clément Demeslay, Roland Gautier, Philippe Rostaing, Angela Digulescu, Cristina Despina‐Stoian, Gilles Burel   +5 more
wiley   +1 more source

LoRa/LoRaWAN Time Synchronization: A Comprehensive Analysis, Performance Evaluation, and Compensation of Frame Timestamping

Future Internet
This paper examines precise timestamping of LoRaWAN messages (particularly beacons) to enable wide-area synchronization for end devices without GNSS.
Stefano Rinaldi, Elia Mondini, Paolo Ferrari, Alessandra Flammini, Emiliano Sisinni   +4 more
doaj   +1 more source

Enhancing System Reliability and Battery Longevity through Integrated Energy Sources and Algorithmic Optimization

International Journal of Energy Research, Volume 2024, Issue 1, 2024.
This research examines the enhancement of low power electronic systems, such as low power wide area networks (LPWANs), by incorporating a mix of renewable energy sources like solar and wind in China. It addresses the challenges posed by the variability of these sources due to climatic and temporal factors by merging diverse energy harvesting (EH ...
Peng Ying, Xing Shen, Xuzhen Jing, Akshay Kumar Saha   +3 more
wiley   +1 more source