Enhanced Interconnection Model in Geographically Interdependent Networks


  • Diego F. Rueda Universitat de Girona
  • Eusebi Calle Institute of Informatics and Applications Universitat de Girona P-IV Building, Campus Montilivi, Girona, Spain
  • Xiangrong Wang Faculty of Electrical Engineering, Mathematics and Computer Science Delft University of Technology Mekelweg 4, Delft, The Netherlands
  • Robert E. Kooij Faculty of Electrical Engineering, Mathematics and Computer Science Delft University of Technology Mekelweg 4, Delft, The Netherlands


Cascading failures, interdependent critical infrastructures, robustness, region-based interconnection.


Interconnection between telecommunication networks and other critical infrastructures is usually established through nodes that are spatially close, generating a geographical interdependency. Previous work has shown that in general, geographically interdependent networks are more robust with respect to cascading failures when the interconnection radius (r) is large. However, to obtain a more realistic model, the allocation of interlinks in geographically interdependent networks should consider other factors. In this paper, an enhanced interconnection model for geographically interdependent networks is presented. The model proposed introduces a new strategy for interconnecting nodes between two geographical networks by limiting the number of interlinks. Results have shown that the model yields promising results to maintain an acceptable level in network robustness under cascading failures with a decrease in the number of interlinks.


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