摘要
依据车载自组织网络(VANET)的高移动性特征分别建立VANET运动解析模型与运动仿真模型.通过两种运动模型得到VANET度分布的解析解与数值解.对它们进行比照分析,发现两种度分布曲线均呈现出小度值的节点个数众多、大度值节点个数较少的特点,符合幂律函数分布,由此证明VANET是一个无标度网络.另外,从理论分析与仿真实验两个角度证明,VANET对随机性攻击具有较高的鲁棒性,但对针对性攻击则表现出网络的脆弱性.
Considering the high mobility characteristics of vehicular ad-hoc network（VANET）,a mobility analytical model and a mobility simulation model were established.The analytic solution and the numerical solution of the VANET degree distribution were obtained by the two proposed mobility models.Comparing the two degree distribution curves,it is shown that there are lot of nodes with small degree values,while a fewnodes with huge degree values,which means that the degree distribution follows the power lawfunction,proving that the VANET is a scale-free network.And the theoretical analysis and simulation experiment verified the high robustness of the VANET against random attacks and its vulnerability when facing targeted attacks.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2016年第8期1084-1088,共5页
Journal of Northeastern University(Natural Science)
基金
辽宁省科学技术计划项目(2015401039)
关键词
车载自组织网络(VANET)
运动模型
度分布
解析解
数值解
VANET（vehicular ad-hoc network）
mobility model
degree distribution
analytical solution
numerical solution
作者简介
赵海（1959-）,男,辽宁沈阳人,东北大学教授,博士生导师.
