Traffic analysis of two-layer coupled networks

Since many systems in the real world are structured and characterized by multilayer networks, more and more scholars have started to investigate the coupling mechanism in multilayer network. In a network, a node’s betweenness centrality reflects the load better than the node degree metric. This paper suggest a new coupling method based on the betweenness centrality of nodes in the network. Connections are made from the middle position according to the order of node betweenness. The results demonstrate that Middle-betweenness coupling makes more even distribution of traffic in the network and an increase in network capacity, as well as an increase in network throughput, compared to Assortative coupling and Disassortative coupling.