  The scale-free (SF) structure that commonly appears in many complex networks
is one of the hot topics related to social, biological, and information
sciences. The self-organized generation mechanisms are expected to be useful
for efficient communication or robust connectivity in socio-technological
infrastructures. This paper is the first review of geographical SF network
models. We discuss the essential generation mechanisms to induce the structure
with power-law behavior and the properties of planarity and link length. The
distributed designs of geographical SF networks without the crossing and
long-range links that cause the interference and dissipation problems are very
important for many applications such as in the Internet, power-grid, mobile,
and sensor systems.
