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满足和提升用户体验质量(QoE)是网络媒体业务传输服务的主要目标,QoE预测评价也是优化调整传输控制机制的主要依据.结合多径中继系统传输场景和业务会话传输控制需求,提出一种QoE协同评价机制,区别于端到端的业务QoE评价体系模式,QoE协同评价机制以集中式QoE评价服务器为核心,支持通过终端、中继服务器等多渠道搜集会话相关的业务和路径数据,基于增强的计算能力和更全面的数据源,可进一步支持“大数据”模式QoE评价模型.主要论述了协同QoE评价机制的基本框架,包括功能组件、接口设计,并分析了应用网络场景描述、信息采集方法,设计了控制报文以及评价流程.实验仿真验证了协同QoE评价机制的有效性和实用性.
QoE is the main goal of network media service delivery service, QoE prediction evaluation is also the main basis for optimizing and adjusting transmission control mechanism.Combining with the transmission scenario of multi-path relay system and the demand of service session transmission control, this paper proposes a QoE collaborative evaluation mechanism is different from the end-to-end business QoE evaluation system model. The QoE collaborative evaluation mechanism focuses on centralized QoE evaluation server and supports multi-channel collection of session-related service and path data through terminals and relay servers. Based on the enhanced And more comprehensive data sources, further support the “big data” mode QoE evaluation model.The paper mainly discusses the basic framework of collaborative QoE evaluation mechanism, including functional components and interface design, and analyzes the application of network scene description, Information collection method, control message and evaluation process are designed.Experimental simulation verifies the effectiveness and practicability of collaborative QoE evaluation mechanism.