【摘要】 实时视频业务将是3G无线网络中最主要的无线宽带应用业务之一。文章在分析视频数据在CDMA2000无线网络中的传输机制的基础上,重点研究CDMA2000链路层重传技术对视频数据传输的影响,并通过OPNET仿真平台及相应的视频编解码实现进行仿真,分析比较了无线信道各种帧差错率条件下不同重传方案对视频实时数据传输的性能影响,表明链路层重传在一定程度上能改善CDMA2000无线网络中的视频传输效果。更多还原

【Abstract】 Real-time video service is an important wireless wideband application of 3G wireless network.This paper studies the mechanism of video data transmission over CDMA2000 wireless network,and investigates how the CDMA2000 link layer retransmission technology affect the transmission performance of video streaming data.It uses the OPNET simulation platform and the corresponding video codec to analyze the video transmission performance over CDMA2000 wireless network,and the simulation results show that CDMA2000 link layer retransmission can improve the video transmission performance.更多还原