The scale-free (SF) structure that commonly appears in many complex networksis one of the hot topics related to social, biological, and informationsciences. The self-organized generation mechanisms are expected to be usefulfor efficient communication or robust connectivity in socio-technologicalinfrastructures. This paper is the first review of geographical SF networkmodels. We discuss the essential generation mechanisms to induce the structurewith power-law behavior and the properties of planarity and link length. Thedistributed designs of geographical SF networks without the crossing andlong-range links that cause the interference and dissipation problems are veryimportant for many applications such as in the Internet, power-grid, mobile,and sensor systems.
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