0000000000331808

AUTHOR

Otman Aghzout

showing 3 related works from this author

Experimental Analysis of IoT Networks Based on LoRa/LoRaWAN under Indoor and Outdoor EnvirMedusonments: Performance and Limitations

2021

Nowadays, Internet of Things (IoT) has multiple applications in different fields. This concept allows physical devices to connect to the internet in order to establish a strong infrastructure that facilitates many device control and monitoring tasks. Low Power Wide Area (LPWA) communication protocols become widely used for IoT networks because of their low power consumption and the broad range communication. LPWA enables devices to transmit small amounts of data in a long distance. Among LPWA protocols, LoRa technology gained a lot of interest recently from the research community and many companies. LoRa is a long range and low power wireless communication technology regulated by the LoRaWA…

InternetControl and Systems EngineeringComputer sciencebusiness.industryElectrònicaReal-time computingEnginyeriaInternet of Thingsbusiness
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Sensor Node Network for Remote Moisture Measurement in Timber Based on Bluetooth Low Energy and Web-Based Monitoring System

2021

This paper proposes an IoT system based on wireless BLE connectivity to monitor the moisture content of wood, using a compact and low-cost moisture device that relies on a resistance measurement method valid for an ultra-wide range of resistance values. This device is digitally controlled with a BLE-incorporated micro-controller characterized by its small size and low power consumption, providing long-life battery. The proposed system consists of two main parts: first, the BLE moisture device including the moisture content measurement and wireless capability (BLE)

Battery (electricity)IoTComputer scienceReal-time computingCloud computingwood moisture sensorcloud server02 engineering and technologylcsh:Chemical technologyBiochemistryArticleAnalytical ChemistryMoisture measurement0202 electrical engineering electronic engineering information engineeringWirelessWeb applicationlcsh:TP1-1185Electrical and Electronic EngineeringWood industryInstrumentationWater contentInternetMoisturebusiness.industry020206 networking & telecommunicationsXarxes locals sense fil Wi-Fiweb applicationmoisture estimationAtomic and Molecular Physics and OpticsVisualizationIoT networkSensor nodeBLE020201 artificial intelligence & image processingSoCbusiness
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A Novel Approach of a Low-Cost UWB Microwave Imaging System with High Resolution Based on SAR and a New Fast Reconstruction Algorithm for Early-Stage…

2022

In this article, a new efficient and robust approach—the high-resolution microwave imaging system—for early breast cancer diagnosis is presented. The core concept of the proposed approach is to employ a combination of a newly proposed delay-and-sum (DAS) algorithm and the specific absorption rate (SAR) parameter to provide high image quality of breast tumors, along with fast image processing. The new algorithm enhances the tumor response by altering the parameter referring to the distance between the antenna and the tumor in the conventional DAS matrices. This adjustment entails a much clearer reconstructed image with short processing time. To achieve these aims, a high directional Vivaldi …

Radiology Nuclear Medicine and imagingComputer Vision and Pattern RecognitionElectrical and Electronic EngineeringCàncerEcografia mamàriaspecific absorption rate; microwave imaging; breast cancer detection; Vivaldi antenna; image reconstruction; confocal algorithmComputer Graphics and Computer-Aided DesignJournal of imaging
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