Title :
Dynamic Framed ALOHA Algorithm Using a Collision Factor in RFID Systems
Author :
Choi, Seung Sik ; Hong, Yun-Sik ; Kim, Sang-Kyung
Author_Institution :
Dept. of Comput. Eng., Univ. of Incheon, Incheon, South Korea
Abstract :
In RFID systems, collision resolution is a significant issue in fast tag identification. This letter presents a dynamic frame-slotted ALOHA algorithm that uses a collision factor (DFSA-CF). This method enables fast tag identification by estimating the next frame size with the collision factor in the current frame. Simulation results show that the proposed method reduces slot times Required for RFID identification. When the number of tags is larger than the frame size, the efficiency of the proposed method is greater than those of conventional algorithms.
Keywords :
access protocols; radiofrequency identification; RFID systems; collision factor; collision resolution; dynamic framed ALOHA algorithm; fast tag identification; Communication channels; Degradation; Delay; Heuristic algorithms; IEC standards; ISO standards; Radio frequency; Radiofrequency identification; Supply chains; Throughput;
Conference_Titel :
Vehicular Technology Conference Fall (VTC 2009-Fall), 2009 IEEE 70th
Conference_Location :
Anchorage, AK
Print_ISBN :
978-1-4244-2514-3
Electronic_ISBN :
1090-3038
DOI :
10.1109/VETECF.2009.5379091