A Survey and Tutorial of RFID Anti-Collision Protocols

作者：Klair Dheeraj K^*; Chin Kwan Wu; Raad Raad

来源：IEEE Communications Surveys and Tutorials, 2010, 12(3): 400-421.

DOI：10.1109/SURV.2010.031810.00037

• RFID systems
• Anti-collision protocols
• Tree variants
• Aloha variants
• Tag estimation functions

RFID technologies have revolutionized the asset tracking industry, with applications ranging from automated checkout to monitoring the medication intakes of elderlies. In all these applications, fast, and in some cases energy efficient, tag reading is desirable, especially with increasing tag numbers. In practice, tag reading protocols face many problems. A key one being tag collision, which occurs when multiple tags reply simultaneously to a reader. As a result, an RFID reader experiences low tag reading performance, and wastes valuable energy. Therefore, it is important that RFID application developers are aware of current tag reading protocols. To this end, this paper surveys, classifies, and compares state-of-the-art tag reading protocols. Moreover, it presents research directions for existing and future tag reading protocols.

• 出版日期2010