Design and Implementation of Communication Algorithm in NIOSII-Based RFID Reader

RFID is a popular automatic identification technology currently, which will have large opportunities in the future. Communication algorithm is a key step for the design of RFID system. This paper propose design and implementation communication algorithm in software. There are many research activities in RFID hardware systems, but there is few in software infrastructure. In order to the implementation of this algorithm, we propose the RFID reader baseband design based on a new structure. This new structure is implemented NIOSII soft core in reader baseband FPGA. It design and implemented communication algorithm in NIOSII soft core. In this paper, the design of reader baseband and communication algorithm are described in detail. Finally, this paper presents the experimental verification communication algorithm and analysis of algorithm parameter Q. The experiment shows that our reader can communicate with multi-tags, and it operations communication algorithm are working correctly.