摘要
Ad hoc移动网络是一种无任何有线基础设施的多跳、临时性自治系统。在进行Ad hoc各种仿真过程中,都需要设定一定的场景和节点数目,合理设置两者之间的关系对于仿真结果的好坏起着重要的作用。文章使用NS2仿真常见的Ad hoc网络设定场景,从数据正确接收率、端到端平均时延和路由开销三方面对比分析出最优的节点设置数目。最后提出了一种性能综合判定方法,对仿真结果表明:在场景1000 m×800 m的环境,设置节点在35左右为最佳,在此基础上,研究通信时发送节点为10左右网络性能最优。
Ad hoc mobile network is a multi-hop,interim self-government system without any cable infrastructure,one certain scene and some mobile nodes should be set during Ad hoc network being simulated,the number of the nodes in the scene will influence the simulation results.In this paper,one usual scene is simulated based on the NS2 software,then it evaluates the simulation results with three performance parameters： packet delivery rate,average end-to-end delay,routing load.Finally,one method of judging is put forward.The simulation results show that thirty-five nodes in the scene whose size is 1000m × 800m is the best.Basing on this,the network performance is the most outstanding when the number of source nodes is ten.
出处
《舰船电子工程》
2010年第5期111-114,共4页
Ship Electronic Engineering
