基于边生命周期的短波IP网络随机图模型

针对短波IP网络中物理连接存在生命周期和接收节点选择方式不同对网络拓扑结构和性能产生的影响,提出了一种基于边生命周期和接收节点多种选择方式的随机图模型。模型中节点之间边生命周期服从正态分布，而新边建立的节点选择方式按照随机选择、度值择优选择和度值反择优选择的方式，用来模拟短波IP网络不同的通信过程。理论分析和仿真也发现，接收节点选择方式的不同将会对网络的度分布、平均最短距离、网络总的度值和节点最大度值及聚集系数都产生影响，而小的连接生命周期将显著减少网络中总的度值和节点的最大度值，减少对物理层资源的占用，提升网络的效能。

Random graphics model for HF IP network based on edge life cycle

In HF IP network, the life cycle of physical connection and the different selection method of the receiving node will have an impact on the network topology and performance. A random graphics model is proposed based on the edge life cycle and different received node selection methods.The life cycle of the edge obeys the normal distribution. What is more, three node selection methods are presented including random selection,preferred selection based on the node degree or the bottom of the node degree. Theoretical analysis and simulation demonstrate that differences of the receiving node selection method will affect the network degree distribution, the average shortest length, the total value of network degree, the maximum degree for a node and the clustering coefficient. At the same time,reducing the edge life cycle will decrease the total degree of the network and the value of maximum degree of a node,and also optimize the physical resource utilization and increase network efficiency.