scholarly journals Design and Implementation of MPVLC Li-Fi Model for End-To-End Wireless Data Transmission

2020 ◽  
Vol 8 (5) ◽  
pp. 2834-2837
Keyword(s):  
Visible Light ◽  
Data Transmission ◽  
High Speed ◽  
Data Rate ◽  
Multimedia Data ◽  
High Data Rate ◽  
Network Coverage ◽  
High Data ◽  
Maximum Delay ◽  
Light Particles

Li-Fi system is a recent and brilliant technology which is utilized visible light as a medium for multimedia data transmission. In Li-Fi communication system, transfers data in the form of light signals as an alternative of Wi-Fi. The Li-Fi technology supports transmission of multimedia data in the way of light particles by sending the multimedia data via LED bulbs that make changes in faster transmission. The Li-Fi with hardware and software model creation with many parameters that must be considered while implementing a Li-Fi based transmission system prototype which is high data rate, distance and the LOS. These parameters are taken for major component when modelling a Light Fidelity system. The main problems in the implementation of an improved data rate at low network coverage and powerless location multi point VLC system and solar component are the range and cost effective model. The VLC source component and destination component must be compatible for high data rate. The conventional lighting technique in communication feels from intrusion and maximum delay possibilities. Solution for the above light based transmission problems in implementation; VLC is a preferred communication model because of its maximum throughput and secure transmission from light particles. The proposed Multi Point Visible Light Communication Li-Fi model provides high-speed communication to achieve better capacity, efficiency, and availability at low network coverage than existing lighting technology

An Intelligent Vehicle Control System for Enhancing Road Safety Using Optimal Visible Light Communication Network

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Shaeista Begum ◽  
Nagaraj B. Patil
Keyword(s):  
Control System ◽  
Visible Light ◽  
Data Transmission ◽  
Exchange Process ◽  
Visible Light Communication ◽  
Vehicle Control ◽  
Data Rate ◽  
High Data Rate ◽  
Intelligent Vehicle ◽  
High Data

AbstractA visible light communication (VLC) provides potential and effective communication paradigm due to the demand of high data-rate applications. VLC networks, consisting of multiple light emitting diodes (LEDs) and it provides the low-cost high data-rate transmission to multiple users simultaneously in indoor environments. VLC has been recently introduced as a secure directional data transmission in vehicle to vehicle to provide an intelligent vehicle control system. However, the performance of this system is mostly affected by the collision of data transmission between different users. In this paper, we introduce an optimal visible light communication (OVLC) network that allows vehicles which have provides collision aware data transmission to improve the chance of transmitting information successively according to the network condition. Firstly, the next forwarding node is selected by the chaotic fish swarm optimization (CFSO) algorithm with the help of vehicle information’s such as intensity of light, the distance and speed of neighboring vehicles. The second contribution is to illustrate the congestion control (CC) system for avoiding extra time due to the control packets exchange process. The optimal result is then forward to the source vehicle equipped device, which helps the driver to make a healthy to control vehicle and efficiently avoid or prevent road accidents under different circumstances. The results show that the proposed OVLC network performs very efficient than existing network in terms of quality metrics, such as throughput, delay, packet loss rate, energy consumption and fairness index.

scholarly journals Proactive Forwarding of High Data Rate in Smart Virtualization Networks for High-Speed Trains

2020 ◽  
Vol 14 (2) ◽  
pp. 1670-1681
Author(s):  
Fouad Ali Yaseen ◽  
Hamed S. Al-Raweshidy
Keyword(s):  
High Speed ◽  
Data Rate ◽  
High Data Rate ◽  
High Data ◽  
High Speed Trains

Lens design-based optimization of path loss in a high data-rate indoor visible light communication link

2020 ◽  
Author(s):  
Faheem Ahmad ◽  
Sathisha Ramachandrapura ◽  
Jyothsna KM ◽  
Rabindra Biswas ◽  
Varun Raghunathan
Keyword(s):  
Visible Light ◽  
Path Loss ◽  
Visible Light Communication ◽  
Data Rate ◽  
High Data Rate ◽  
Communication Link ◽  
Lens Design ◽  
High Data

High Speed Portable Wireless Data Acquisition System for High Data Rate Applications

2009 ◽  
Author(s):  
Emre I. Cosar ◽  
Maurizio Bocca ◽  
Lasse M. Eriksson
Keyword(s):  
Data Acquisition ◽  
Health Monitoring ◽  
High Speed ◽  
Original Data ◽  
Data Rate ◽  
Sensor Nodes ◽  
High Data Rate ◽  
Wireless Sensor ◽  
Sink Node ◽  
High Data

Communication between a sink node and a PC can constitute a bottleneck for high data rate applications of wireless sensor networks (WSNs) including, but not limited to, structural health monitoring, condition monitoring, wireless surveillance and patient health monitoring. In this paper, we evaluate four different data acquisition alternatives for data-intensive WSN applications. We will concentrate especially on optimizing UART (universal asynchronous receiver transmitter) communication in conjunction with WSN applications. Furthermore, we propose a new method for sink node to PC communication, which is based on using a USB-connected data acquisition (DAQ) board that samples the node external I/O. This method can provide an efficient solution to transfer data from the sink node to PC at a reasonable cost. Wireless sink node converts the data received from the network into analog signal levels, which are sampled through the DAQ board connected to a PC, and the original data is reconstructed offline. Tests on a wooden bridge built to scale with six wireless sensor nodes and a sink node show that with the proposed method it is possible to collect the data from the network and transfer them onto the PC significantly faster than with the 115.2 kbps UART communication regularly used in WSN applications.

scholarly journals Performance Analysis of Cooperative Non-Orthogonal Multiple Access in Visible Light Communication

2019 ◽  
Vol 9 (19) ◽  
pp. 4004
Author(s):  
Hesham Sadat ◽  
Mohamed Abaza ◽  
Safa M. Gasser ◽  
Hesham ElBadawy
Keyword(s):  
Visible Light ◽  
Multiple Access ◽  
Visible Light Communication ◽  
Data Rate ◽  
High Data Rate ◽  
Achievable Rate ◽  
High Data ◽  
Power Domain ◽  
Main Challenge ◽  
Analytic Expressions

Nowadays, visible light communication (VLC) systems have become one of the candidate technologies for high data rate indoor communications. However, the main challenge to develop a high data rate VLC system is the narrow modulation bandwidth of light-emitting diodes (LEDs). Power domain non-orthogonal multiple access (PD-NOMA) is a promising scheme to enhance the spectral efficiency of downlink VLC systems. In this paper, we introduce cooperative PD-NOMA to the system to improve the signal reception for the far users. We evaluate the bit error rate (BER) and achievable rate performance of non-cooperative and cooperative PD-NOMA under perfect channel state information (CSI). Moreover, we drive analytic expressions for the BER and provide a Monte Carlo simulation results for verifying the validity of the derived analytical BER results. The results show that cooperative PD-NOMA outperforms non-cooperative PD-NOMA by 8.2 dB at BER 10−6 and by achievable rate 14.1 bit/s/Hz at 45 dB in a two-user scenario.

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