Active localization in distributed networks: A framework

Location-awareness is considered a promising technology for use in constructing ubiquitous environments. And, though numerous research works have been devoted to localization problems, there have been relatively few theoretical analyses of network localizations. In this research field, recent research has contributed to finding a unique realization of a network graph G = (V, E) in a 2-dimensional space using graph rigidity theory. However, they do not focus on unlocalizable networks that can be changed to localizable networks via active localization. In this paper, we point out two fundamental problems of using unlocalizable networks in active localization and propose solutions for overcoming these problems.