车载自组网无标度特性与小世界特性分析

Analysis of Scale-free and Small-world Characteristics of Vehicle Ad-hoc Network

提出了面向车载自组网的BA1度优先连接方法。基于城市数据集的实际场景和节点随机均匀分布的仿真场景,分别采用全连接和BA1连接,进行了对比实验。实验结果表明:在全连接组网方式下,网络在实际场景和仿真场景中均不具有无标度特性和小世界特性;在BA1连接组网方式下,网络在实际场景中不具有无标度特性和小世界特性,而在仿真场景中,当通信半径增长到一定值时,网络具有无标度特性和小世界特性。

BA1 degree priority connection method for vehicle ad-hoc network(VANET) was proposed.Based on the actual scene of the city data set and the simulation scene of random and uniform distribution of nodes, the full connection and BA1 connection were respectively adopted to carry out comparative experiments. The experimental results show that when the network is fully connected, the network does not have scale-free and small-world characteristics in both the actual and simulation scenes.When BA1 is connected to the network, the network does not have the scale-free and small-world characteristics in the actual scene. When the communication radius grows to a certain value, the network has the scale-free and small-world characteristics in the simulation scene.