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In particular, without considering the characteristics of hierarchy structure, it is quite misleading to employ the existing cascading failure models and effectively analyze the invulnerability of C2 networks. Therefore, a novel cascading failure model for command and control networks with hierarchy structure is proposed in this paper. Firstly, a method of defining the node\u2019s initial load in C2 networks based on hierarchy-degree is proposed. By applying the method, the impact of organizational positions and the degree of the node on its initial load could be highlighted. Secondly, a nonuniform adjustable load redistribution strategy (NALR strategy) is put forward in this paper. More specifically, adjusting the redistribution coefficient could allocate the load from failure nodes to the higher and the same level neighboring nodes according to different proportions. It could be demonstrated by simulation results that the robustness of C2 networks against cascading failures could be dramatically improved by adjusting the initial load adjustment coefficient, the tolerance parameter, and the load redistribution coefficient. And finally, comparisons with other relational models are provided to verify the rationality and effectiveness of the model proposed in this paper. Subsequently, the invulnerability of C2 networks could be enhanced.<\/jats:p>","DOI":"10.1155\/2018\/6063837","type":"journal-article","created":{"date-parts":[[2018,3,26]],"date-time":"2018-03-26T23:31:24Z","timestamp":1522107084000},"page":"1-14","source":"Crossref","is-referenced-by-count":4,"title":["A Cascading Failure Model for Command and Control Networks with Hierarchy Structure"],"prefix":"10.1155","volume":"2018","author":[{"given":"Xiue","family":"Gao","sequence":"first","affiliation":[{"name":"School of Computer Science and Technology, Dalian University of Technology, Dalian, Liaoning 116024, China"},{"name":"School of Information Engineering, Dalian University, Dalian, Liaoning 116622, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Duoping","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Information Engineering, Dalian University, Dalian, Liaoning 116622, 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