基于Petri网模型的Ad Hoc网络可生存性分析  

On Survivability Analysis of Ad Hoc Network Based on Petri Net Model

作　　者：张慧敏[1] 古天龙[1] 

机构地区：[1]桂林电子科技大学计算机与控制学院,广西桂林541004

出　　处：《系统仿真学报》2008年第9期2487-2490,共4页Journal of System Simulation

基　　金：广西研究生教育创新项目(2007105950812M16)

摘　　要：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 character that the dynamic topology of Ad Hoc network is difficult to model, a Petri net model that could represent the transmission relation between any two nodes was developed. Through calculating the probability of two nodes＇ connectivity and the probability of sending data packets during specified duration from source node to destination node successfully, the survivability was evaluated. Moreover, the effect of network＇s parameters such as node＇s transmission range and average number of neighbors on survivability was analyzed as an example. The experimental results are helpful for users to calculate network＇s survivability or adjust the network＇s parameters according to the actual survivability requirements.

关 键 词：ADHOC网络 动态拓扑 可生存性 PETRI网 传输范围 平均邻居结点数目 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]