A low area & low power SOC design for the baseband demodulator of an indoor local positioning system

With the advent of Global Positioning Systems or GPS, people around the globe have found an easy solution to locate where they are. However, the main disadvantage of the same is that it does not function well in an indoor location and an alternative for the same must be utilized. Most of the indoor location positioning systems utilize Radio Frequency signals emanating from transmitters spread across the area under consideration and the position of the receiver is found using the Received Signal Strength Indication or RSSI from each transmitter. In this paper a novel approach for a low area and low power system-on-chip design of the baseband receiver for an Indoor Local Positioning System has been described. The receiver was designed and developed on a Virtex 4 series FPGA and was found to consume 1.44 times less power and 1.4 times less area than its predecessors.