A RFID algorithm based on cyclic redundancy check

Authors:
Yan-Fei Li;Hong-Jun Wang;Hua Li
Affiliations:
School of Information Science and Engineering, Shandong University, Ji'nan, Shandong, China;School of Information Science and Engineering, Shandong University, Ji'nan, Shandong, China;School of Information Science and Engineering, Shandong University, Ji'nan, Shandong, China
Venue:
ASID'09 Proceedings of the 3rd international conference on Anti-Counterfeiting, security, and identification in communication
Year:
2009

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Abstract

In this paper, a novel anti-collision algorithm based on cyclic redundancy check is proposed to improve the performance of the RFID system. Compared with the previous algorithm, two new techniques can be found in our algorithm. First, noting transmitting the RN16 in the process of reading costs too much time in ISO18000-6C protocol, we use 16-bit Cyclic Redundancy Check (CRC16) to take the place of 16-bit Random number (RN16) as the tag's handle. Second, we suggest slot time should be introduced into a RFID anti-collision system to form a standard to evaluate the efficiency of any kinds of anticollision algorithms. Experimental results show that the proposed algorithm can achieve much better performance.