摘要
为测量IP视频传输网中的延迟、丢包率等主要性能指标,提出了基于组成分析的延迟测量模型和基于TCP会话和窗口控制的丢包率测量模型,在对上述测量模型进行详细的原理论述的基础上,给出了实现方法;在测试中,阐述了Winpcap与Winsock相结合的测量程序架构的设计和实现;最后,根据实验测试结果,分析了视频传输网的运行情况;从实际应用效果来看,所提出的模型可以满足IP视频网中延迟、丢包率等指标的测量要求。
In order to measurement the performance indicators such as delay and loss rate in the IP video transmission network, the model for delay measurement based on components and the model for loss rate measure based on TCP dialog and windows controlling have been in- troduced and discussed, and the realization of the models hasbeen presented too. The architecture based on combination of Winpeap and Winsock hasbeen discussed and realized. By the results of experiments, the conditions of video network have been given to prove the fact that the models addressed can meet the demand of performance measurement in IP transmission network.
出处
《计算机测量与控制》
CSCD
2008年第7期946-948,共3页
Computer Measurement &Control
基金
国家863基金资助项目(2005AA887001)
关键词
视频传输
延迟
丢包率
性能测量
video transmission
delay
loss rate
performance measurement
