计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (16): 1-3.

• 博士论坛 • 上一篇    下一篇

一种动态频谱下的实时视频传输仿真框架

彭光超,刘延伟,胡亚辉,唐 晖   

  1. 中国科学院声学研究所 高性能网络实验室,北京 100190
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-06-01 发布日期:2011-06-01

Simulation framework for real-time video transmission in dynamic spectrum environment

PENG Guangchao,LIU Yanwei,HU Yahui,TANG Hui   

  1. High Performance Network Laboratory,Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-06-01 Published:2011-06-01

摘要: 认知无线电技术通过动态频谱接入提高了频谱资源利用率。针对动态频谱环境中进行实时流媒体传输缺乏仿真手段,提出了一种基于NS2的视频传输仿真架构,它能够支持实时视频编码、实时播放模拟与跨层优化传输。实验结果证明了仿真架构的正确性。

关键词: NS2网络仿真器, 实时视频, 认知无线电, 跨层优化

Abstract: Cognitive radio improves the spectrum utilization by accessing the spectrum dynamically.As lacking of a simulation mechanism for video streaming in dynamic spectrum environment,a NS2 based simulation framework is proposed,it supports real-time video coding,cross layer optimized transmission,and real-time video playing.This framework is validated by the simulation results.

Key words: Network Simulator-version 2(NS2), real-time video, cognitive radio, cross layer optimization