Abstract:

An anticollision algorithm is very important in the RFID systems. The present DBS protocol is good for passive tags. However, in the real world, there is a high probability of the existence of a weak tag due to the long distance. The existing DBS is not robust against this problem. This paper presents a novel robust dynamically slotted anticollision algorithm based upon DBS. We suggest an uncertain queue to solve this problem based on DBS. The results show that the total number of identifications is reduced by 55% using this method compared to the conventional BSA with a good performance in robustness.

Key words: RFID system;anticollision algorithm;robust