An LCOR model for suppressing cascading failure in weighted complex networks |
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Authors: | Chen Shi-Ming Pang Shao-Peng and Zou Xiao-Qun |
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Institution: | [1]School of Electrical and Electronic Engineering, East China Jiaotong University, Nanchang 330013, China [2]Key Laboratory of Advanced Control & Optimization of Jiangxi Province, Nanchang 330013, China |
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Abstract: | Based on the relationship between capacity and load, cascading failure on weighted complex networks is investigated, and a load-capacity optimal relationship (LCOR) model is proposed in this paper. Compared with three other kinds of load-capacity linear or non-linear relationship models in model networks as well as a number of real-world weighted networks including the railway network, the airports network and the metro network, the LCOR model is shown to have the best robustness against cascading failure with less cost. Furthermore, theoretical analysis and computational method of its cost threshold are provided to validate the effectiveness of the LCOR model. The results show that the LCOR model is effective for designing real-world networks with high robustness and less cost against cascading failure. |
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Keywords: | cascading failure load-capacity optimal relationship model robustness cost |
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