Results 21 to 30 of about 282 (168)

Design of a Low Complexity Interference Detector for LPWA Networks [PDF]

open access: yes2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2019
Many Internet of Things applications are deployed over shared ISM (Industrial, Scientific, Medical) radiof requency spectrum bands. With the recent development of Low Power Wide Area (LPWA) wireless networks, the probability of interference and frame collisions has significantly increased. In this context, real-time interference monitoring is essential
Heng Uy, Chhayarith   +2 more
openaire   +2 more sources

Energy efficient indoor localisation for narrowband internet of things

open access: yesCAAI Transactions on Intelligence Technology, Volume 8, Issue 4, Page 1150-1163, December 2023., 2023
Abstract There are an increasing number of Narrow Band IoT devices being manufactured as the technology behind them develops quickly. The high co‐channel interference and signal attenuation seen in edge Narrow Band IoT devices make it challenging to guarantee the service quality of these devices.
Ismail Keshta   +8 more
wiley   +1 more source

Anatomical phenotype of obstructive sleep apnea patients based on cluster analysis

open access: yesOrthodontics &Craniofacial Research, Volume 26, Issue 4, Page 608-617, November 2023., 2023
Abstract Objectives To generate a novel subtype of obstructive sleep apnea (OSA) based on anatomical features and verify the differences in the response of different subtypes to orthodontic treatment, thus providing a theoretical reference for clinical decision‐making.
Liping Huang   +3 more
wiley   +1 more source

Benchmarking of Narrowband LPWA Physical Layer Ranging Technologies [PDF]

open access: yes2019 16th Workshop on Positioning, Navigation and Communications (WPNC), 2019
Accurate radio signal based geolocalization for Low Power Wide Area networks is a key-enabler to various Internet of Things applications. However, localization with narrowband signals remains challenging in multipath environments. Sequential coherent multi-channel ranging improves temporal resolution while being compatible with narrowband transmissions.
Wolf, Florian   +5 more
openaire   +2 more sources

Simplification of DFT and IDFT in PRACH

open access: yesElectronics Letters, Volume 59, Issue 15, August 2023., 2023
In order to reduce the computational complexity, the authors proposed implement strategies for prime point discrete Fourier transform (DFT) and ultra‐long point inverse discrete Fourier transform (IDFT) in physical random access channel (PRACH), respectively.
Yufeng Jiang, Shouxin Kang
wiley   +1 more source

Low Power Wide Area Networks: A Survey of Enabling Technologies, Applications and Interoperability Needs

open access: yesIEEE Access, 2018
Low-power wide area (LPWA) technologies are strongly recommended as the underlying networks for Internet of Things (IoT) applications. They offer attractive features, including wide-range coverage, long battery life, and low data rates.
Qahhar Muhammad Qadir   +5 more
doaj   +1 more source

Apoptotic effect and cell arrest of deoxyshikonin in human osteosarcoma cells through the p38 pathway

open access: yesJournal of Cellular and Molecular Medicine, Volume 27, Issue 11, Page 1592-1602, June 2023., 2023
Abstract Osteosarcoma is the most common primary bone cancer that affects adolescents with early metastatic potential and drastically reduces their long‐term survival rate if pulmonary metastases are detected at diagnosis. The natural naphthoquinol compound deoxyshikonin exhibits anticancer properties, so we hypothesized that it has an apoptotic effect
Ming‐Chang Hsieh   +7 more
wiley   +1 more source

A Comparative Survey of LPWA Networking

open access: yesCoRR, 2018
10 ...
Joseph Finnegan, Stephen Brown 0001
openaire   +2 more sources

Resource Allocation for NOMA-based LPWA Networks Powered by Energy Harvesting [PDF]

open access: yes2021 IEEE Wireless Communications and Networking Conference (WCNC), 2021
In this paper, we explore perpetual, scalable, Low-powered Wide-area networks (LPWA). Specifically we focus on the uplink transmissions of non-orthogonal multiple access (NOMA)-based LPWA networks consisting of multiple self-powered nodes and a NOMA-based single gateway.
Fatma Benkhelifa, Julie A. McCann
openaire   +2 more sources

Requirements, Deployments, and Challenges of LoRa Technology: A Survey

open access: yesComputational Intelligence and Neuroscience, Volume 2023, Issue 1, 2023., 2023
LoRa is an ISM‐band based LPWAN communication protocol. Despite their wide network penetration of approximately 20 kilometers or higher using lower than 14 decibels transmitting power, it has been extensively documented and used in academia and industry.
Muhammad Ayoub Kamal   +4 more
wiley   +1 more source

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