Results 131 to 140 of about 42,493 (254)

RSSI-based Object Finding System

, 2016
In this thesis, work regarding to development a system that would help finding lost objects based on RSSI is presented. The thesis gives a basic overview of the theory behind RF modulation, antennas and PCB design. Based on the presented theory, the technology and system parameters are chosen to design and ultimately complete the system. To improve the
openaire   +2 more sources

Geolocation of Devices in Low-Power Wide-Area LoRa Network

Communications
This article is focused on the geolocation possibilities in low-power deployments. A novel Logarithmic Distance Path Loss Model with a Memory (LDPL-M) algorithm is proposed to enhance the accuracy of determining the location of end devices.
Ladislav Zemko, Daniel Hroš, Alexander Valach, Marek Galinski, Pavel Čičák   +4 more
doaj   +1 more source

Underground RSSI positioning method based on multi-stage denoising and dual-branch temporal network

Gong-kuang zidonghua
The underground Received Signal Strength Indicator (RSSI) signal exhibits non-stationary characteristics such as sharp spikes, high-frequency jitter, and trend drift under the influence of multipath propagation, occlusion, and electromagnetic ...
FENG Ziyang, GONG Peilin, ZHAO Tong, YI Kang, LI Peng, SU Chao, BAI Libin   +6 more
doaj   +1 more source

A novel RSSI-based geometric iterative centroid positioningoptimization strategy using commercial Wi-Fi signals

ETRI Journal
The information interaction and positioning technology based on commercialWi-Fi plays a crucial role in expanding the applications for the Internet ofThings and smart homes.
Jin Huang, Xuejie Hu, Yue Tian
doaj   +1 more source

Estimating Object Location in RF Communication by Using RSSI Values Through k-NN and Deep Learning Techniques

Gazi Üniversitesi Fen Bilimleri Dergisi
GPS-based positioning faces significant challenges in accuracy and reliability, especially due to environmental factors such as signal interruptions, multi-path propagation, and poor satellite visibility.
Nihat Daldal, Muhammad Zaib
doaj   +1 more source

Hybrid FSO/RF Networks with Neural Prediction of RSSI and Weather

Acta Electrotechnica et Informatica
This paper investigates neural network models for predicting weather parameters and received signal strength indicator (RSSI) to enable adaptive handover in hybrid free space optics (FSO)/radio frequency (RF) systems.
Liščinská Zuzana, Ovseník L’uboš, Oravec Jakub   +2 more
doaj   +1 more source

Evaluation and Improvement of the RSSI-based Localization Algorithm : Received Signal Strength Indication (RSSI)

, 2015
Context: Wireless Sensor Networks (WSN) are applied to collect information by distributed sensor nodes (anchors) that are usually in fixed positions. Localization (estimating the location of objects) of moving sensors, devices or people which recognizes the location’s information of a moving object is one of the essential WSN services and main ...
openaire   +1 more source

Neural Network-Based LoRa Received Signal Strength Indicator Fingerprint Identification for Indoor Localization of Mobile Robots. [PDF]

Sensors (Basel)
Barai C, Sarkar M, Sarkar U, Mazumder S, Chandra A, Samanta T, Pandey HK.   +6 more
europepmc   +1 more source

Different Characteristics of Incidental Diffusion-Weighted Imaging-Positive Lesions and Recent Small Subcortical Infarct in Patients With Cerebral Small Vessel Disease. [PDF]

J Am Heart Assoc
Pan ZA, Yao M, Liu ZY, Pan XQ, Wang YY, Li CQ, Shu MJ, Bao TQ, Tang SH, Zhang DD, Zhou LX, Ni J, Wardlaw JM, Han F, Zhu YC, CSVD Disability and Outcome Cohort Study Investigators †.   +15 more
europepmc   +1 more source

Remote cortical degeneration related to structural connectivity following recent small subcortical infarcts. [PDF]

Neuroimage Clin
Wang Y, Cui J, Yan Y, Yang T, Yuan Y, Lei R, Luo R, Wu B, Jiang S.   +8 more
europepmc   +1 more source