Application of ICA-based anti-collision algorithm in RFID system
Lifen YuanYigang He · 2010
Data collision problem exists in radio fre- quency identification (RFID) system when tabs are present in the interrogation zone of a single reader at the same time. Though different anti-collision methods have been proposed, it still needs further study on how to improve the identification ability especially in the interference circum- stance. This paper presents a new method based on inde- pendent component analysis (ICA) algorithm. Coded division multiple access (CDMA) technology is adopted at the transmitter and the maximum signal to noise ratio is applied at the receiver of the RFID system. The proposed method has been verified by computer simulation which shows that the system can separate different users' source data correctly based on ICA algorithm and has better performance compared with the traditional CDMA technology.