摘要
在NS2平台上仿真实现了多媒体传感器网络的视频流传输,并在NS2-myEvalvid模型的基础上通过比较PSRN值分析了压缩量化参数、GOP类型、封包长度和封包错误率对视频流传输质量的影响。仿真实验表明,压缩量化参数、GOP长度或封包错误率取值越小,视频流的传输效果越好;而封包长度取值越小,视频流的传输效果越差。
This paper achieves video streams transmission in NS2 simulation platform for MSNs, and analyzes the impact of the compression quantization parameters, GOP type, packet length and packet error rate to transmission quality of video streams. Simulation results show that when the compression quantization parameters, GOP length or packet error rate value is less, the transmission quality of multimedia information is better. However, the smaller the packet length, the worse the transmission quality of video streams.
出处
《微型机与应用》
2012年第19期50-53,56,共5页
Microcomputer & Its Applications