Optimal coupling patterns in interconnected communication networks

摘要

Traffic dynamics on single or isolated complex networks has been extensivelystudied in the past decade. Recently, several coupled network models have beendeveloped to describe the interactions between real-world networked systems. Ina system of interconnected networks, the coupling links refer to the physicallinks between networks and provide paths for traffic transmission. Thus, thecoupling pattern, i.e., the way coupling links are added, has a profoundinfluence on the overall traffic performance. In this paper, we employ asimulated annealing (SA) algorithm to find a near-optimal configuration of thecoupling links, which effectively improves the overall traffic capacitycompared with random, assortative and disassortative couplings. Furthermore, weinvestigate the optimal configuration of coupling links given by the SAalgorithm and develop a faster method to select the coupling links.