Research On Video Streaming Service QoE Evaluation Method For Multipath Relay Transmission

With the rapid development of IP network,video streaming media service has been widely used,and its huge market profit has prompted more network service providers to pay more attention to the QoE evaluation research related to this kind of service.On the one hand to establish good business QoE evaluation mechanism can provide more high quality user experience for the user,in love and trust of the user at the same time management for commercial purposes;on the other hand,effective QoE evaluation mechanism can also help network service providers in the security transfer transmission quality,saving network resources under the premise,to strengthen the control of the business.Multi transmission has become an important trend in the optimization of video streaming services,and the QoE evaluation model of video streaming media service is still based on the traditional single path transmission.Business QoE model and evaluation is not only the basis of decision-making for the path of service,but also the decision-making basis for the control of multi path transmission.The video stream media business in real time video service as the object of study,through the summary and Research on the QoE to quantify and evaluate the methods,analysis of the factors affecting QoE evaluation based on the H.264 real-time video based on build multipath relay transmission scenario.And to establish the mapping relationship between the business performance parameters of network QoS and QoE at the same time,take the subjective and objective combined evaluation method,using the classical analytic hierarchy process(AHP)and ant colony algorithm,transmission service quality premise to design QoE score rules and calculation process.By simulation,the QoE evaluation mechanism to according to the current network performance parameters calculated the transmission path weights and integrated service QoE score,help the transmitter based on the link state of dynamic adjustment data load distribution ratio,to achieve the optimal transmission control,and further enhance the user experience quality.The main research contents and results are as follows:(1)Based on the QoE evaluation of video streaming media service,the characteristics of H.264 based real time video service are analyzed,and the mapping relationship between QoS parameters and QoE is established;(2)The related factors of service QoE evaluation in multi path relay transmission scenarios are studied,and the rules of QoE evaluation and the calculation process are established;(3)Using the analytic hierarchy process(AHP)to calculate the QoE evaluation rules of real time video services in multi path relay transmission environment,and the application of QoE transmission based on ant colony algorithm is verified.(4)To establish a "heuristic" QoE evaluation and transmission control decision method based on historical data.Depth first search method is used to traverse the expert database,based on the similarity threshold matching between business and path QoS for evaluation and decision making.