Abstract: According to characters of mobility models, this article gives a classification of mobility models, such as random mobility model, mobility model with temporal dependency, mobility model with spatial dependency and mobility model with geographic restriction. There are three situations used to compare applicability of these mobility models including battlefield, event hall and art gallery. A simulation tool called ANSIM is applied to test several mobility models. Average number of neighbors, average number of hops and probability of connection are compared under RW/RD/GM mobility models. At last there is a simulation scenario of obstacle mobility model in the campus.

Key words: MANET, Mobility model, Network simulation

摘要： 根据随机性、时间相关、空间相关、地理受限等特性对于MANET移动模型进行了分类研究，结合3种实际应用，包括战场环境、事件场景、参观展览，比较移动模型与之相应的特点和适用范围，研究了移动模型混合使用的可行性。利用ANSIM工具对其中常用的几种移动性模型进行仿真试验，比较了RW、RD、GM模型对节点平均邻居数、平均跳数、节点间连通性的影响，并进行了校园区内障碍物模型下节点移动的场景模拟。

关键词: 移动自组网, 移动模型, 网络仿真

CLC Number: 

• TP393