Results 41 to 50 of about 9,385 (183)

Drilling Water Level Intelligent Monitoring System Based on Narrow-band Internet of Things

open access: yesMeikuang Anquan, 2020
An intelligent monitoring system for drilling water level based on Narrow-band Internet of Things is designed. The system controls the forward and reverse rotation of the DC motor through the intelligent telemeter, drives the capacitive water level ...
YAN Maoyin, XU Lenian, HUAN Zhihao
doaj   +1 more source

Complexity-Efficient Coherent Physical Cell Identity Detection Method for Cellular IoT Systems

open access: yesMathematics, 2022
Narrowband Internet of Things (NB-IoT) is one of the low-power wide-area network technologies that aim to support enormous connection, deep coverage, low power consumption, and low cost. Therefore, low cost of implementation and maintenance is one of the
Young-Hwan You   +3 more
doaj   +1 more source

On a Hybrid Preamble/Soft-Output Demapper Approach for Time Synchronization for IEEE 802.15.6 Narrowband WBAN [PDF]

open access: yes, 2015
In this paper, we present a maximum likelihood (ML) based time synchronization algorithm for Wireless Body Area Networks (WBAN). The proposed technique takes advantage of soft information retrieved from the soft demapper for the time delay estimation ...
Atallah, Leila Najjar   +4 more
core   +3 more sources

Designing an Ultra-Low-Power RTU for Use in NB-IoT Water Applications [PDF]

open access: yesMATEC Web of Conferences, 2019
This paper presents the design and realization of a ultra-low-power and low-cost remote transfer unit (RTU), working as an outdoor gateway for collecting hydrographic data, such as rainfall, water flow rate, water quality, etc.
Ganchev Ivan   +2 more
doaj   +1 more source

Research on the NB-IoT Random Access in LEO Satellite IoT

open access: yes天地一体化信息网络, 2021
Narrowband internet of things (NB-IoT) technology is widely used in data communications for a large number of low-speed and low-power devices, but it is diff cult to provide services for remote areas that cannot be covered by terrestrial networks.With ...
Haodong LIU   +4 more
doaj   +2 more sources

Design and Implementation of a Framework for Smart Home Automation Based on Cellular IoT, MQTT, and Serverless Functions

open access: yesSensors, 2023
Smart objects and home automation tools are becoming increasingly popular, and the number of smart devices that each dedicated application has to manage is increasing accordingly.
Marco Esposito   +3 more
doaj   +1 more source

A comprehensive survey on the security of low power wide area networks for the Internet of Things

open access: yesICT Express
While the spreading of the Internet of Things continues beyond expectations, the security of networking technologies used in this context remains an open issue.
Giovanni Stanco   +4 more
doaj   +1 more source

Filtered OFDM systems, algorithms and performance analysis for 5G and beyond [PDF]

open access: yes, 2018
Filtered orthogonal frequency division multiplexing (F-OFDM) system is a promising waveform for 5G and beyond to enable multi-service system and spectrum efficient network slicing.
Ijaz, Ayesha   +4 more
core   +1 more source

State-of-the-art in Power Line Communications: from the Applications to the Medium [PDF]

open access: yes, 2016
In recent decades, power line communication has attracted considerable attention from the research community and industry, as well as from regulatory and standardization bodies.
Cano, Cristina   +5 more
core   +2 more sources

Improved electromagnetic compatibility standards for the interconnected wireless world [PDF]

open access: yes, 2019
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new ...
Azpúrua Auyanet, Marco Aurelio   +2 more
core   +1 more source

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