基于机会网络编码的视频流传输性能仿真研究  

Performance simulation study of video transmission based on ONC

作　　者：狄海阳 白光伟[1,2] 沈航[2] 于淼[1] 

机构地区：[1]南京工业大学计算机科学与技术系,南京210009 [2]南京理工大学高维信息智能感知与系统教育部重点实验室,南京210094

出　　处：《计算机应用研究》2013年第12期3702-3704,3711,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(60673185;61073197);江苏省自然科学基金资助项目(BK2010548);江苏省科技支撑计划(工业)资助项目(BE2011186);江苏省普通高校研究生科研创新计划资助项目(CXLX11_0262;CXZZ12_0425)

摘　　要：研究无线网络中基于机会网络编码的实时视频数据传输性能。深入分析网络编码的工作原理及其对于无线网络性能的提升,在简要介绍视频传输特点的基础上探讨机会网络编码支持视频传输的要点,通过仿真的方法研究无线网络中基于机会网络编码的实时视频传输性能,并比较分析传输后的重构图像与原始图像的质量。仿真结果表明,网络编码不仅可以提高网络吞吐量,还提高了视频传输的质量。The focus of this paper is on the performance analysis of real-time video transmission based on opportunistic network coding in wireless networks. It begined with a brief description of basic concept and potential benefits when performing network coding in wireless networks. Then it gave a brief introduction of the characteristics of video transmission, building upon which discussed the performance issues of combing opportunistic network coding and video streaming. Finally it analyzed the performance of real-time video transmission based on opportunistic network coding in wireless networks through simulation methodology, and compared the quality of reconstructed images with that of original ones. The simulation results show that network coding contributes to not only the network throughput but also the quality of video transmission.

关 键 词：机会网络编码 吞吐量 视频传输 无线网络 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]