CAJ | 학술논문

基于NS2的Ad hoc网络路由协议的仿真和改进文献很多，但少有给出仿真实现的具体过程，让一些入门阶段的研究人员知其然而不知其如何然。该文以Ad hoc网络典型路由协议AODV为例，介绍了AODV协议的基本原理，利用NS2平台对其仿真，并对产生的跟踪文件进行性能分析，编写脚本批处理分析文件生成结果数据，用gunplot对数据绘图直观展现。结果说明AODV路由协议对不同传输机制的数据流的支持差异是很明显的，CBR流比TCP流的传输效率更高、网络开销更少。完整的OTcl场景脚本和参数设计给入门级网络协议研究者提供了很好的参考。
기우NS2적Ad hoc망락로유협의적방진화개진문헌흔다，단소유급출방진실현적구체과정，양일사입문계단적연구인원지기연이불지기여하연。해문이Ad hoc망락전형로유협의AODV위례，개소료AODV협의적기본원리，이용NS2평태대기방진，병대산생적근종문건진행성능분석，편사각본비처리분석문건생성결과수거，용gunplot대수거회도직관전현。결과설명AODV로유협의대불동전수궤제적수거류적지지차이시흔명현적，CBR류비TCP류적전수효솔경고、망락개소경소。완정적OTcl장경각본화삼수설계급입문급망락협의연구자제공료흔호적삼고。
Though there were lots of papers referring to simulation and improving routing protocols for Ad hoc network based on NS2, few of them introduced the specific procedure of simulation. So it is difficult for researchers at the introductory level to know well. Here sets a case study of AODV, a typical protocol of Ad Hoc network. Firstly, brief the principles of ADOV proto-col. Secondly, present its concrete simulation on NS2, analyze the result trace file, write a script to batch process analysis files for data.at last, and show plot data directly using gunplot. Results indicate that the difference is very obvious while AODV Routing Protocol supporting for data stream of different transport mechanisms. CBR stream transmission is more efficient than that of TCP and less network overhead. A set of OTcl scene scripts with parameters designed offers good references to elementary learn-er.