Modeling of a re-configurable indoor positioning system based on software defined radio architecture

This paper introduces the model of a software configurable indoor positioning system where the hardware of the active nodes is based on the Software-Defined Radio architecture. The use of an SDR architecture allows to vary the properties of the transmitted signal as function of the precision and the accuracy required by diverse applications and operating conditions. The target positions are extracted using a fully-digital algorithm implemented with an FPGA that can be easily extended or modified to improve the overall performance of the system.