东华大学学报（自然科学版）
東華大學學報（自然科學版）
동화대학학보（자연과학판）
JOURNAL OF DONGHUA UNIVERSITY(NATURAL SCIENCE)
2009年
5期
575-579,591
,共6页
王诚杰%李荣正%黄润才%曹奇英
王誠傑%李榮正%黃潤纔%曹奇英
왕성걸%리영정%황윤재%조기영
移动网络%网络仿真%仿真软件%协议分析
移動網絡%網絡倣真%倣真軟件%協議分析
이동망락%망락방진%방진연건%협의분석
mobile network%network simulation%simulation software%protocol analysis
网络拓扑的仿真与协议分析是网络研究领域的一种重要方法和手段.分析了Ad Hoc网络的特点和体系结构,详细介绍Ad Hoc网络以及它的3个协议(AODV:Ad HOC on Demand Distance Vector, DSDV: Destination Sequenced Distance Vector, DSR: Dynamic Source Routing),并从网络仿真目标、仿真方案设计、仿真环境设定、OTcl脚本编写等方面分析了移动Ad Hoc网络仿真的过程和方法,最后利用仿真软件NS2对这3个协议进行了仿真,生成了相应的仿真运行图和参数对照图表,并从数据包成功接收率和端到端的时延2个方面对仿真结果进行了分析.通过网络仿真和对仿真结果的分析、比较,可以从中得出:在运动场景不剧烈的情况下,可以选用路由协议DSR,此时它的丢包率和端到端时延都较低;而在运动场景剧烈的情况下,则可以选用路由协议AODV,它综合了DSR和DSDV协议的优点,数据包成功接收率很高.且端到端时延较低.
網絡拓撲的倣真與協議分析是網絡研究領域的一種重要方法和手段.分析瞭Ad Hoc網絡的特點和體繫結構,詳細介紹Ad Hoc網絡以及它的3箇協議(AODV:Ad HOC on Demand Distance Vector, DSDV: Destination Sequenced Distance Vector, DSR: Dynamic Source Routing),併從網絡倣真目標、倣真方案設計、倣真環境設定、OTcl腳本編寫等方麵分析瞭移動Ad Hoc網絡倣真的過程和方法,最後利用倣真軟件NS2對這3箇協議進行瞭倣真,生成瞭相應的倣真運行圖和參數對照圖錶,併從數據包成功接收率和耑到耑的時延2箇方麵對倣真結果進行瞭分析.通過網絡倣真和對倣真結果的分析、比較,可以從中得齣:在運動場景不劇烈的情況下,可以選用路由協議DSR,此時它的丟包率和耑到耑時延都較低;而在運動場景劇烈的情況下,則可以選用路由協議AODV,它綜閤瞭DSR和DSDV協議的優點,數據包成功接收率很高.且耑到耑時延較低.
망락탁복적방진여협의분석시망락연구영역적일충중요방법화수단.분석료Ad Hoc망락적특점화체계결구,상세개소Ad Hoc망락이급타적3개협의(AODV:Ad HOC on Demand Distance Vector, DSDV: Destination Sequenced Distance Vector, DSR: Dynamic Source Routing),병종망락방진목표、방진방안설계、방진배경설정、OTcl각본편사등방면분석료이동Ad Hoc망락방진적과정화방법,최후이용방진연건NS2대저3개협의진행료방진,생성료상응적방진운행도화삼수대조도표,병종수거포성공접수솔화단도단적시연2개방면대방진결과진행료분석.통과망락방진화대방진결과적분석、비교,가이종중득출:재운동장경불극렬적정황하,가이선용로유협의DSR,차시타적주포솔화단도단시연도교저;이재운동장경극렬적정황하,칙가이선용로유협의AODV,타종합료DSR화DSDV협의적우점,수거포성공접수솔흔고.차단도단시연교저.
Simulation and protocol analysis of network topology is an important research method in network field. The features and infrastructure of Ad Hoc are introduced. The Ad Hoc network and its three protocols (AODV: Ad Hoc on Demand Distance Vector, DSDV: Destination Sequenced Distance Vector, DSR: Dynamic Source Routing)are presented in detail. The process and method of the simulation of mobile Ad Hoc is analyzed in aspects of objection,scheme design,environment setting and Otcl script writing. Finally,the three protocols are simulated by NS2 software, the relevant simulation working diagram and parameter comparison table are presented, and the simulation results are analyzed in aspects of packet delivery fraction and end-to-end time delay. The comparison of simulation results concludes that in the circumstance of non-active movement, the DSR protocol is available due to its low packet loss rate and low end-to-end time delay. While in the circumstance of active movement, AODV protocol is available due to its high packet delivery fraction and low end-to-end time delay, thus, it embodies the mixed features of DSR and DSDV protocol.
