Results 51 to 60 of about 10,686 (217)

Prediction-Based Energy Saving Mechanism in 3GPP NB-IoT Networks [PDF]

open access: yes, 2017
The current expansion of the Internet of things (IoT) demands improved communication platforms that support a wide area with low energy consumption. The 3rd Generation Partnership Project introduced narrowband IoT (NB-IoT) as IoT communication solutions.
Lee, Jaiyong, Lee, Jinseong
core   +1 more source

Foldable all-textile cavity-backed slot antennas for personal UWB localization [PDF]

open access: yes, 2020
An all-textile multimoded cavity-backed slot antenna has been designed and fabricated for body-worn impulse radio ultra-wideband (IR-UWB) operation in the 3,744-4,742.4 MHz frequency band, thereby covering Channels 2 and 3 of the IEEE 802.15.4a standard.
Lemey, Sam   +4 more
core   +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

Design and Optimization of an Internet of Things-Based Cloud Platform for Autonomous Agricultural Machinery Using Narrowband Internet of Things and 5G Dual-Channel Communication

open access: yesElectronics
This paper proposes a design and optimization scheme for an Internet of Things (IoT)-based cloud platform aimed at enhancing the communication efficiency and operational performance of autonomous agricultural machinery.
Baidong Zhao   +10 more
semanticscholar   +1 more source

Hybrid NarrowBand-internet of things protocol for real time data optimization

open access: yesInternational Journal of Electrical and Computer Engineering (IJECE), 2023
The level of dependence on data communication in the modern era is increasing exponentially. The internet of things (IoT) plays a very important role in the advancement of the industrial revolution 4.0 that utilizes data communication systems.
Denny Kurniawan   +2 more
semanticscholar   +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

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