Real-time Video Transmission Strategy Research And Platform Design Based On Data Packet Timeliness

With the rapid development of the mobile Internet,video transmission services in terminal equipment continue to emerge.In the interactive streaming media scene,frequent data interactions between different devices require high real-time performance,and the timeliness of data packets is critical to system performance.In recent years,researchers have used age of information to measure the information timeliness of data packets.The size of the information age is defined as the elapsed time from the generation of the latest received data packet to the current moment.Due to the limited communication resources and the dynamic changes of the channel state,the data packets generated by the terminal equipment cannot be transmitted to the data receiving end in time,resulting in a decrease in data timeliness.Therefore,how to perform reasonable data packet transmission scheduling and timely data packet transmission to ensure the quality of video transmission is a problem worthy of study.Aiming at the demand of real-time video transmission for data packet timeliness,this paper studies the impact of packet loss rate and information age of video data packet transmission on video transmission to ensure the video quality of real-time transmission,and designs a display platform for real-time video transmission strategies..First,aiming at the transmission errors caused by the time-varying fading characteristics of wireless channels and the real-time requirements of video transmission,a real-time video transmission strategy based on packet timeliness is studied.Furthermore,based on the purpose of showing the superiority of the data packet scheduling strategy studied in this paper in real-time video transmission,a scheduling strategy display platform is designed.The main contributions of this article are as follows:(1)In response to the demand for information timeliness of real-time video transmission and the problem of data packet transmission errors caused by the dynamic changes of communication channels,under the limitation of packet loss rate,with the goal of optimizing the timeliness of information at the receiving end,a data-based Packet timeliness real-time video transmission strategy.The simulation results show that,compared with the traditional hybrid automatic repeat request,the strategy proposed in this paper better guarantees the timeliness of data packet transmission.At the same time,the strategy proposed in this article is also very competitive in optimizing video quality.(2)In response to the need to display the process and performance of real-time video transmission strategies,this paper designs a display platform for real-time transmission of data packets.Firstly,the data transmission process is modularized and divided into four parts:video transmission model module,data storage module,data processing layer module and page display layer module.The video files are converted into video data streams for transmission in dynamic channels,and then different data packet scheduling strategies are used for scheduling simulation.The platform development is based on the Node.js environment,using the front-end technology stack of Vue.js for system development and design,and builds a responsive high-quality web interface constructed by the MVVM architecture.The operating results of the system platform show the scheduling process,scheduling results,and various index data of the data packet,which shows that the real-time video transmission strategy based on the timeliness of the data packet has significant advantages.