Research On Key Technologies Of High Performance WEB System In Mobile Environment

With the rapid development of mobile Internet in recent years,mobile WEB has become an important part of peopled life.However,the performance problem of mobile WEB has always affected the user experience of mobile WEB:problems such as poor stability of wireless networks and high latency often plague users.Although the performance of mobile WEB has been greatly improved,with the emergence of new mobile WEB application scenarios,new challenges are put forward to mobile WEB performance optimization.In view of this,this thesis studies the architecture and key technologies of high-performance WEB in mobile enviroment.The main work and innovations of the thesis are summarized as follows:(1)Aiming at the main performance bottlenecks of mobile WEB applications,such as insufficient video transmission performance,poor network stability and low network utilization,and difficulty in virtual C-RAN and WEB service integration,the improvement and optimization schemes of mobile WEB basic technology system are proposed:distributed real-time transcoding CDN technology,mobile WEB push model based on resource scheduling,and C-RAN mobile WEB full sinking virtualization based on mobile communication user behavior-driven are key technologies,and a new high-peformance mobile WEB technology framework is constructed.(2)CDN technology is one of the core technologies for mobile WEB application performance optimization,but it often encounters bottlenecks in video storage.In this thesis,a distributed real-time transcoding CDN technology is designed for the problem of insufficient CDN storage space.Based on the research of the basic theory and model of distributed real-time transcoding CDN technology,the distributed real-time video transcoding CDN technology optimization model architecture is proposed,and the distributed real-time transcoding CDN message communication protocol,CDN resource acquisition process,the evaluation method of storage value of heat storage ratio resources,transcoding capablility analysis model and storage resource allocation algorithl are designed,and the efficiency of distributed real-time transcoding CDN technology is verified by simulation experiments.(3)Due to the influence of the basic characteristics of wireless communication,mobile WEB is prone to obvious fluctuations in resource transmission.When the network is under good communication conditions,the current communication state is not used to transmit resources.On the contrary,when the network is in poor communication conditions,it is possible to transmit a large amount of resources.Aiming at the problems of poor stability of mobile network and low network utilization,this thesis constructs a mobile WEB push model based on resource scheduling,including data prediction,push strategy,network condition monitoring and hypothesis-based caching mechanism,and designs the communication protocol and business process of the push model,and the effectiveness of the mobile WEB push model based on resource scheduling is verified by simulation experiments.(4)In view of the problems that C-RAN cluster virtualization resources are insufficient and C-RAN and WEB service are difficult to integrate,this thesis proposes a C-RAN mobile WEB full sinking virtualization model and constructs a C-RAN mobile WEB fbll sinking virtualization architecture with multiple levels,and studies the monitoring model and value evaluation model based on mobile comnunication user behavior,and designs the C-RAN mobile WEB virtualization migration technology.The full-scale C-RAN deployment of the WEB function is realized and the functional boundary of the C-RAN WEB virtualization is expanded.The simulation results show that compared with traditional WEB virtualization technology,the C-RAN mobile WEB full sinking virtualization can shorten the two-way delay from client-to-server and server-to-client,and improve the performance of mobile WEB system.