Results 51 to 60 of about 2,376 (139)
Impact of Number of LEDs on An Optical Camera Communication Based Indoor Positioning System [PDF]
Optical camera communications (OCCs) technology utilizes lighting infrastructure for both illumination and data transmission and a camera for the data receiver. Recently, implementing OCC for indoor positioning has drawn a lot of attention.We consider an
Ghassemlooy, Zabih +2 more
core +1 more source
A blockchain database system for a rail transit equipment system
A blockchain system platform is developed in this paper for subway applications. Design assistance, construction assistance, operation and maintenance assistance, energy saving assistance, manpower reduction assistance, fire protection linkage assistance at transfer stations, federal learning analysis, and AI analysis are also provided, along with a ...
Junfeng An +6 more
wiley +1 more source
FFT-Based Frequency Detection and Interference Analysis for NLOS MIMO-OCC
In this paper, we provide a solution based on fast Fourier Transform (FFT) for frequency detection and interference analysis in a non-line-of-sight (NLOS) multiple-input multiple-output (MIMO) optical camera communications (OCC) link.
Shivani Rajendra Teli +5 more
doaj +1 more source
SegFlow: Joint Learning for Video Object Segmentation and Optical Flow
This paper proposes an end-to-end trainable network, SegFlow, for simultaneously predicting pixel-wise object segmentation and optical flow in videos. The proposed SegFlow has two branches where useful information of object segmentation and optical flow ...
Cheng, Jingchun +3 more
core +1 more source
This work proposes a simulation tool of a system aimed to predict the movements of tourists in an indoor scenario. It is based on a visible light positioning (VLP) system using LED lamps and an App in the user's mobile phone. VLP offers a dual illumination-location solution and provides highly accurate indoor positioning data of the user, able to feed ...
Rufo Torres, Saray +4 more
openaire +2 more sources
Nowadays, underwater activities are becoming more and more important. As the number of underwater sensing devices grows rapidly, the amount of bandwidth needed also increases very quickly. Apart from underwater communication, direct communication across the water–air interface is also highly desirable.
Yung-Jie Chen +4 more
openaire +2 more sources
SDR-Based All-Optical MIMO Wireless Hybrid IoT Sensor Networks
In this paper, we experimentally demonstrate and analyze the performance of a software-defined radio (SDR)-based all-optical multiple-input multiple-output (MIMO) wireless hybrid communication link for indoor Internet of Things (IoT) sensor networks.
Shivani Rajendra Teli +3 more
doaj +1 more source
Undersampled Pulse Width Modulation for Optical Camera Communications [PDF]
An undersampled pulse width modulation (UPWM) scheme is proposed to enable users to establish a non- flickering optical camera communications (OCC) link. With UPWM, only a digital light emitting diode (LED) driver is needed to send signals using a higher
Ghassemlooya, Z +4 more
core +3 more sources

