Cooperative Mobile Positioning

Cooperative mobile positioning is becoming increasingly important as a promising new branch of wireless location in which several research directions are being explored (e.g., positioning, tracking, data fusion and clustering). This chapter first discusses the framework of cooperative mobile positioning framework and then introduces the COMET as an innovative solution for position determination in fourth generation (4G) wireless networks. It also presents a brief survey of cooperative localization in robot networks and wireless sensor networks (WSNs), and examines the cooperative mobile positioning approach and its overall benefits. The chapter further illustrates the data fusion and filtering techniques, which have been adapted to cope with the cooperative framework. Finally, it describes COMET, an example of a cooperative augmentation system (CAS) in a cellular network, with its system architecture and its data fusion methods; and explores its performance, which has been evaluated via computer simulations.