| In this thesis, we have identified the effect of changes ISO 18000-6 Type-C also known as EPC Class-1 Generation-2 RFID protocol's parameters on the performance of the RFID system. The protocol parameters that changing in the research are Tari, operating frequency, pulse width and modulation index at the constant transmitted power. All the parameters do fall outside the range of the EPC Class-1 Generation-2 protocol; but the power transmited by the RFID reader is under FCC regulations. The research gives detailed behavior of the RFID signal propagation.;A part of this research is to build a high performance software define RFID reader. The RFID reader is being implemented on the National Instruments PXI-RF and FPGA hardware platform and uses NI LabVIEW 8.5 as the software platform. The reader uses the state-machine based software architecture and VISN RFID FPGA toolkit v.1.2. The experiments were designed to eliminate the effects of the tag's antenna design.;The experiments were carried out on four different types of tags, and a general theory is proposed in order to study the deviation of the theoretical data and experimental results. All the experiments are conducted in the anechoic chamber and later two experiments were also carried out in the lab conditions. Study also shows the effect of Tari and frequency on the power received from the tag and time between the tag's response after the reader finishes its command. |
