基于HTTP的移动流媒体QoE管理的研究

发布时间：2018-03-14 19:37

本文选题：移动流媒体　切入点：HTTP　出处：《北京邮电大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着基于HTTP的移动流媒体业务相关技术的不断发展和人们对基于HTTP的移动流媒体服务的要求不断提高,服务商迫切需要一个适用于HTTP移动流媒体业务的用户体验管理方法。目前基于HTTP的移动流媒体评价方法主要考虑的因素不够全面,比较侧重在对视频本身质量的评价。同时由于互联网视频系统中不同角色有不同的体验质量(QoE)需求,因此需要一套面向互联网视频系统的QoE评价方法。本文对基于HTTP移动流媒体业务特点和相应的传输技术和用户体验质量管理(QoE)现状进行了研究。结合以上研究,分析互联网视频系统中各角色的作用进而提出面向互联网视频系统的基于HTTP的移动流媒体业务的用户体验质量管理需求。针对以上基于HTTP的移动流媒体业务的用户体验质量管理需求,分析目前基于HTTP的移动流媒体业务QoE管理的相关技术,并进行归纳总结。研究发现目前QoE管理方面存在以下问题：评价主要在侧重在对视频质量本身的评价,考虑的QoE影响因素不够全面,并且没有一套根据互联网视频系统中不同角色的QOE管理需求而设计的评价方法。针对以上问题,考虑用户和各部分服务商的不同需求,考虑视频本身、应用层、用户视觉特点、心理特点、用户类型、用户位置和终端等影响因素,提出面向互联网视频系统的HTTP自适应移动流媒体业务评价方案。针对以上评价方案,本文搭建DASH视频实验平台对其进行验证。首先使用GPAC工具制作DASH视频文件；然后开发一款基于HTML5的DASH视频播放器,该播放器能够播放DASH视频文件并搜集视频播放过程中视频质量信息、缓冲信息、视频切换信息等以及用户位置信息,用户评分等。然后设计用户体验评价实验,并招募多位测试人员进行实验并收集实验数据。利用SPASS工具对以上实验数据进行分析,使用多元线性回过分析方法对面向用户评价算法进行线性拟合,拟合结果较好。因此,实验平台和评价算法能够给未来的研究一些参考。最后本文对笔者早期在实验室参与的工作即设计和实现的基于RTP/RTSP协议的移动流媒体业务的用户体验评价系统进行了描述,系统旨在将实验室流媒体业务相关项目提出的专利中的基于RTP/RTSP协议的移动流媒体业务QoE评价方法进行实现。系统平台能够根据网络参数,业务参数和用户数据获得QoE值,能够给未来.的QoE评价系统的设计和实现一些参考。
[Abstract]:With the development of mobile streaming media service technology based on HTTP and the increasing requirement of mobile streaming media service based on HTTP, Service providers urgently need a user experience management method suitable for HTTP mobile streaming media service. At present, the main factors of mobile streaming media evaluation method based on HTTP are not comprehensive enough. At the same time, due to the different roles in the Internet video system have different experience quality needs, so we need a set of QoE evaluation method for the Internet video system. In this paper, the characteristics of mobile streaming media services based on HTTP, the corresponding transmission technology and the current situation of user experience quality management (QQM) are studied. This paper analyzes the role of each role in Internet video system and puts forward the user experience quality management requirement of mobile streaming media service based on HTTP for Internet video system. According to the demand of user experience quality management of mobile streaming media service based on HTTP, this paper analyzes the related technology of QoE management of mobile streaming media service based on HTTP. It is found that there are the following problems in QoE management: the evaluation is mainly focused on the evaluation of video quality itself, and the factors affecting QoE are not comprehensive enough. And there is not a set of evaluation methods designed according to the QOE management requirements of different roles in the Internet video system. In view of the above problems, considering the different needs of users and service providers, considering the video itself, application layer, user visual characteristics, Based on the psychological characteristics, user type, user location and terminal, a HTTP adaptive mobile streaming media service evaluation scheme for Internet video system is proposed. In view of the above evaluation scheme, this paper builds a DASH video experiment platform to verify it. Firstly, we use GPAC tools to make DASH video files; then we develop a DASH video player based on HTML5. The player can play DASH video files and collect video quality information, buffer information, video switching information, user position information, user score and so on. Using SPASS tools to analyze the above experimental data, and using multiple linear regression analysis method to carry out linear fitting of user-oriented evaluation algorithm, the fitting results are good. The experimental platform and evaluation algorithm can provide some references for future research. Finally, this paper describes the user experience evaluation system of mobile streaming media service based on RTP/RTSP protocol, which is the work that the author participated in in the laboratory earlier, that is, the design and implementation of the user experience evaluation system based on RTP/RTSP protocol. The purpose of the system is to realize the QoE evaluation method of mobile streaming media service based on RTP/RTSP protocol in the patent of the related items of the streaming media service in laboratory. The system platform can obtain the QoE value according to the network parameters, service parameters and user data. Can give future. QoE evaluation system design and implementation of some reference.
【学位授予单位】：北京邮电大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN919.8

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