基于Qualnet的无线网络视频传输评测系统

无线网络视频传输是当前网络研究的热点方向,真实视频流是进行网络协议性能评价的最佳业务,然而当前主流网络仿真软件都不支持真实视频流业务。在网络仿真软件Qualnet中设计实现了无线网络视频传输评测系统VtPet。该系统将视频编解码器集成到Qualnet中,支持真实视频流的实时编码、传输、解码以及播放。收集统计多种视频传输性能参数,除了常用的网络性能参数（如吞吐率、延迟等）外,还有能反映接收端视频主、客观质量的性能参数及手段。VtPet简单易用,性能参数评价全面,是进行无线网络视频传输评测的有效工具。

Abstract：

Video transmission in wireless network attracts many attentions nowadays.It’s important to evaluate the performance of network protocols via real video stream.However,none of the well-known network simulation software supports real video stream traffic,including Qualnet.VtPet （Video transmission Performance evaluation toolkit） is developed in Qualnet.VtPet integrates video codec into Qualnet,so that it can support real video stream traffic.Extensive performance metrics are collected,such as end-to-end throughput,delay,as well as PSNR.VtPet is easy to use with clean interface.It can facilitate to evaluate performance of video transmission in wireless network efficiently.

Video Transmission Performance Evaluation System in Wireless Network Based on Qualnet

Video transmission in wireless network attracts many attentions nowadays.It’s important to evaluate the performance of network protocols via real video stream.However,none of the well-known network simulation software supports real video stream traffic,including Qualnet.VtPet （Video transmission Performance evaluation toolkit） is developed in Qualnet.VtPet integrates video codec into Qualnet,so that it can support real video stream traffic.Extensive performance metrics are collected,such as end-to-end throughput,delay,as well as PSNR.VtPet is easy to use with clean interface.It can facilitate to evaluate performance of video transmission in wireless network efficiently.