The Visual Communication Network Protocol Optimization And Its Application In Vehicle Interconnection

Visible light communication is an important direction for the development of 5G communication technology and car networking technology.Information transmission based on visible light can greatly increase the bandwidth capacity and speed of communication.It is the future that humans need to solve the problem of very high communication speeds such as car networking.An important way of communication,this article studies the visible tube communication technology.Based on the existing IEEE802.15.7 protocol,it optimizes its core technologies such as frame structure and access control,and proposes an optimized access.Mechanism and method can effectively improve the efficiency and speed of visible light communication,and it is of great significance to promote the further development of visible light technology in the future.The main research contents of this paper are as follows:1)The core theory of visible light communication protocol,MAC layer frame structure,access control technology,etc.is studied.Combining with the current research status at home and abroad,an optimized design scheme is proposed.The scheme is from the frame structure and access control.Optimize to effectively improve the efficiency and speed of visible light communication;2)The basic structure and link characteristics of the visible light communication system under the car networking environment are studied,the fairness of the access mechanism of visible light is analyzed in depth,and the visible light communication performance analysis model is constructed based on the network throughput Markov model.This paper evaluates the performance of the optimized visible light communication in this paper.Finally,based on the OpenNet platform,the simulation analysis of the optimization model is completed,and the reliability of the optimized solution is verified.3)Constructed a vehicle networking system terminal based on visible light communication.Based on the architecture of the previous vehicle networking system,the architecture of the vehicle visible light communication system,the design of interactive protocols and coding rules were completed,and the optimized access built in this paper was completed.The solution is integrated into the design and an efficient vehicle-based terminal system based on visible light communication is implemented;4)Based on the Dragonboard 410 c platform,based on the design of the entiresystem scheme,the design of the visible light vehicle-mounted terminal experiment system was completed,a specific hardware and software design scheme was given,and finally the test environment was built to test and verify the system.Through practical experimental analysis,the reliability of the proposed algorithm and the feasibility of its application are verified.