节点动态增长对复杂网络传输效率的影响研究

The Study of the Influence on Node Dynamic Growth to Transfer Efficiency in Complex Network

在真实的复杂网络中,网络节点会因为网络拓扑结构的变化而增减,进而导致网络节点间传输效率降低.针对这一问题,通过分析复杂网络节点的动态变化,提出网络节点增加的动态传输模型,并利用真实复杂网络的数据模拟仿真,研究网络节点变化对网络传输效率的影响.结果表明:网络的初始大小会随网络节点的动态增加而变化,其传输效率受节点动态增加的影响在最初阶段表现明显,随着节点的继续增加,网络传输效率会趋于平稳,表现出稳定的网络特性.在这个过程中,复杂网络每次新加入节点的个数和节点边维持了网络信息传输的信息量,强化了网络传的输性能,使得网络具有较好的总体控制能力和有效的节点连接方式.

In real complex network, the nodes will increace with the structure of net- work topology and if take no account of the change of node numbers, the transfer efficiency among nodes will reduce. Aiming at the problem, this paper put forward dynamic transfer model.Using the data simulation of real network to analysis the influence of node change to transfer efficiency, The result indicates that the network capacity will change over with the increase of node numbers. At the early stage, the influence varies significantly and will verge to smooth and steady subsequently.In the whole process, the new increased nodes maintain the information content and strenghth the network transfer performance, which lead to a better overall control ability and effective connection type.