Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:B3
Session:
Number:B3-3
Design of Framed and Slotted Time Structure for ALOHA-based Collision Arbitration Scheme in RFID Networks
Jin Kyung Park, Woo Cheol Shin, Jun Ha, Chulhun Seo, Joonmo Kim, Cheon Won Choi,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
Consider an RFID network which consists of a reader and a crowd of tags sojourning in the vicinity of the reader. In the RFID network, a response of a tag may collide with responses of other tags. However, the time for the reader's cognizing the tag is limited in the network. Assuming a framed and slotted ALOHA for arbitrating a collision, we choose the cognizance ratio for given cognizance time as a key performance measure. Then, we formulate a problem to find an optimal structure of framed and slotted time which maximizes the cognizance ratio under a costraint on the cognizance time. In some simple cases, we present an optimal time structure analytically. Also, we confirm that there exists a non-trivial number of frames which maximizes the cognizance ratio for given constraint on the cognizance time.