Abstract—In an RFID system, a reader has to be able to identify tags reliably. When the tags have mobility, the reader should identify quickly within a certain limited time to identify all tags. Existing RFID anti-collision protocols do not consider the movement of tags, so there may be some tags that a reader cannot identify. And if tags have mobility, the channel between a reader and tags varies by time. So a reader has to react to the varying channel condition. In this paper, we propose a new anti-collision protocol taking the mobility of tags and channel error into consideration. The proposed anti-collision protocol allows the tags to use the best line code under the moving tag environment. We show that the performance of RFID identification is improved using the proposed protocol via analysis and simulations.

Index Terms—Anti-collision, moving tag, line code, RFID.

Ji Hyoung Ahn and Tae-Jin Lee are with the College of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea.
Jongho Park is with the Convergence R&D Lab., LG Electronics, Seoul, Korea.

Cite:Ji Hyoung Ahn, Jongho Park, Tae-Jin Lee, "Channel-Aware Identification Protocol of Moving Tags in RFID Systems," International Journal of Computer and Communication Engineering vol. 4, no. 5, pp. 354-362, 2015.