全IP无线网络中流媒体业务的性能分析

Performance study of streaming services over all-IP wireless networks

针对可变速率的多用户多信道子系统,以业务实现架构上的自下而上的顺序,逐层分析了业务性能的累积恶化,提出了一种用于全IP无线网络中流媒体业务的端到端QoS性能分析方法,该方法结合理论分析和仿真实验,对影响业务性能的时延、传输速率和差错率这3个QoS指标进行了评估。

An end-to-end quality of service （QoS） analytic method for streaming media over an ALL-IP wireless network was proposed, which was applicable to analyze the cumulative performance degradation along the service architecture based on a bottom-up approach. The radio interface of wireless network consisted of a variable-rate multi-user and multi-channel subsystem. By means of both mathematic analysis and simulations, three QoS attributes were evaluated： delay, throughput and loss rate.