scholarly journals The feasibility of obstacle awareness forwarding scheme in a visible light communication vehicular network

2020 ◽  
Vol 10 (6) ◽  
pp. 6453
Author(s):  
Lisa Kristiana ◽  
Arsyad Ramadhan Darlis ◽  
Irma Amelia Dewi
Keyword(s):  
Visible Light ◽  
Ad Hoc ◽  
Heavy Traffic ◽  
Signal Transmission ◽  
Visible Light Communication ◽  
Vehicular Network ◽  
Mobile Nodes ◽  
V2v Communication ◽  
City Environment ◽  
High Rise

A vehicular-to-vehicular (V2V) communication is a part of a vehicular ad-hoc network (VANET) that emerges recently due to the heavy traffic environment. V2V is a frequently changing network since it implements vehicles as mobile nodes. The challenges in implementing V2V are the relatively short duration of possible communication and the uneven city environment caused by high rise buildings or other objects that distract the signal transmission. The limited transmitting duration between vehicles requires efficient coordination and communication. This work focuses on the utility of visible light communication in vehicular network (VLC-VN) in data transmitting and the obstacle awareness in the forwarding scheme based on our knowledge in previous researches. The result of evaluating the feasibility of VLC-VN forwarding in a freeway environment the transmission delay is lower than 1 second in 500 byte data transmission, however it reaches to only about 4% in throughput as a drawback.

scholarly journals Visible Light Communication Channel Models and Simulation of Coal Workface Energy Coupling

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Yanrong Zhai ◽  
Shen Zhang
Keyword(s):  
Visible Light ◽  
Communication Systems ◽  
Communication Channel ◽  
Channel Model ◽  
Coal Dust ◽  
Signal Transmission ◽  
Energy Coupling ◽  
Mathematic Model ◽  
Visible Light Communication ◽  
Optical Signal

Due to their low energy consumption and small size, visible light communication systems have been widely used to eliminate communication-blind areas in coal workfaces. A workface visible light communication channel model and a mathematic model of energy coupling from the mining machine’s workspace to its footpath were established to investigate the characteristics of optical signal transmission on the workface. This paper studies the effects of coal dust (double-layer particles encapsulated by moisture) on optical signal degradation. Simulation results revealed the presence of an optimized transmitter location, which maximized the coupled energy of the two space signals due to the blocking effect of metal columns.

scholarly journals Implementation of Visible Light Communication for Data Acquisition using System on Chip

2019 ◽  
Vol 8 (11) ◽  
pp. 955-958
Keyword(s):  
Visible Light ◽  
Data Acquisition ◽  
Computer Architecture ◽  
Image Data ◽  
Visible Light Communication ◽  
System On Chip ◽  
Receiver Side ◽  
V2v Communication ◽  
Vehicle To Infrastructure ◽  
On Chip

Visible light communication is the future of the globe communication having applications in trust areas like V2V communication, Vehicle to infrastructure, medical domain etc., We propose a design for a computer architecture in data acquisition system using system on chip to transmit the image data and the same is received in the receiver side. The proposed mode consist of hardware and software task.The hardware task is designed using zybo board which is soc board and Xilinx is used as an interface between hardware and the system. The proposed mechanism proves to have better data acquisition capability than other models at a higher data rate

scholarly journals OPTIMAL ROUTE SELECTION STRATEGY FOR QOS IMPROVEMENT

2012 ◽  
pp. 136-143
Author(s):  
MANJHARI JAIN ◽  
AKHILESH A. WAOO ◽  
P. S. Patheja ◽  
SANJAY SHARMA
Keyword(s):  
Ad Hoc ◽  
Performance Metrics ◽  
Channel Model ◽  
Single Channel ◽  
High Reliability ◽  
Heavy Traffic ◽  
Selection Strategy ◽  
Link Failure ◽  
Mobile Nodes ◽  
Optimal Paths

An ad-hoc mobile network is a collection of mobile nodes that are dynamically and arbitrarily located in such a manner that the interconnections between nodes are capable of changing on a continual basis. Ad hoc nodes operating in a single path, single channel model might experience packet loss and high latency due to the congestion caused. Nodes along the heavy traffic path could reach the maximum bandwidth limit and experience undesirable amounts of packet drop. In Ad hoc networks the nodes are mobile and contain no infrastructure. Certain emergency messages have to be delivered with very low latency and high reliability. An efficient routing protocol should ensure reliable packet delivery in a timely manner. Our Proposed solution is to setup multiple optimal paths based on bandwidth and delay. It allows storing multiple optimal paths based on Bandwidth and delay. At time of link failure, it will switch to next available path. To set up multiple paths, we have used the information that we get in the RREQ packet and also send RREP packet to more than one path It reduces overhead of local route discovery at the time of link failure. We investigated the performance metrics namely Retransmission Attempt, Media Access Delay, Network Load by through OPNET simulation.

scholarly journals Automobile Collision Warning and Identification System using Visible Light and Wi-Fi Communication

2019 ◽  
Vol 8 (5S3) ◽  
pp. 72-77
Keyword(s):  
Visible Light ◽  
Communication Technology ◽  
Transmission Rate ◽  
Visible Light Communication ◽  
Identification System ◽  
Collision Warning ◽  
V2v Communication ◽  
Vehicle To Vehicle ◽  
Cloud Server ◽  
Sd Card

This paper introduces a vehicle-to-vehicle (V2V) communication system based on visible light communication technology. A vehicle will transmit the data continuously to another vehicle in front of it using head light and the data is stored in the Secure Digital (SD) Card in comma separated value for future reference in case of emergency at the same time the data is stored in the cloud server for government reference for locate the most accident areas. Nowadays, people readily use internet in their day-to-day activities to accomplish their task by means of wireless or wired network. As users are increasing manifold, data transmission rate consequently decreasing. However, Wi-Fi imparts data rate of 150Mbps as per IEEE 802.11n, this speed is still not enough to suffice the needs of a user. Considering this, Visible light communication concept has been introduced. In this project, a comparative and analytic study about the speed of visible light and Wi-Fi communication is being done and also reduction of network jamming problem due to increasing users demand is also being done.

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