Analysis of RFID anti-collision algorithms using smart antennas

Authors:
Jeongkeun Lee;Taekyoung Kwon;Yanghee Choi;Sajal K. Das;Kyung-ah Kim
Affiliations:
Seoul National University, Seoul, Korea;Seoul National University, Seoul, Korea;Seoul National University, Seoul, Korea;University of Texas, Arlington, TX;Service Development Lab., Seoul, Korea
Venue:
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Year:
2004

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Abstract

Recently, the radio frequency identification (RFID) technology has gained significant attention. One of the important performance issues in RFID systems is to resolve the collision among responses from RFID tags from the viewpoint of wireless media access control. We consider two kinds of smart antenna systems to enhance the RFID tag reading rate, namely the adaptive array antenna and the multiple-input multiple-output (MIMO) antenna. We consider passive tags that are operating without battery. We evaluate how much performance can be improved by employing smart antennas in the cases of the binary tree splitting algorithm and the Slotted-Aloha algorithm.