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基于Ad Hoc网络动态拓扑结构难以用模型精确描述的特性,建立了可以表示网络中任意两个结点之间动态数据传输关系的Petri网模型,通过计算两个结点连通的概率和在规定时间内成功传输给定长度数据的概率,对网络的可生存性进行了研究,同时举例分析了结点传输范围和平均邻居结点数目两个网络因素对可生存性的影响。实验结果可以指导用户对网络可生存性进行度量,或根据实际的可生存性需求,调整相应的网络参数。
Based on the fact that the dynamic topology of Ad Hoc network is difficult to be accurately described by the model, a Petri net model that can express the dynamic data transmission relationship between any two nodes in the network is established. By calculating the probability of the two nodes communicating and the probability The probability of successful transmission of a given length of data is studied and the survivability of the network is studied. The influence of two network factors, namely, the node transmission range and the average number of neighbor nodes on the survivability, is analyzed. The experimental results can guide the user to measure the survivability of the network or adjust the corresponding network parameters according to the actual survivability requirements.