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IEICE TRANSACTIONS on Communications

Open Access
Adaptive Array Antenna Using On-Off and CMA Algorithms for Microwave RFID Readers

Tanawut TANTISOPHARAK, Akkarat BOONPOONGA, Chuwong PHONGCHAROENPANICH, Phaophak SIRISUK, Monai KRAIRIKSH

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Summary :

This paper proposes an adaptive antenna using a combination of on-off and CMA algorithms. With the proposed technique, the on-off algorithm is first employed to search for a desired signal direction in which maximum received power is achieved. Then, interference is suppressed by performing CMA. Simulations are conducted according to the potential application of the proposed adaptive antenna. The simulation results show the SINR improvement implying that the proposed adaptive antenna can be applied to microwave RFID systems in order to resolve reader collision. Furthermore, the proposed adaptive antenna is implemented and then experimented. The experimental results verify that the proposed adaptive antenna can reduce interference resulting in the collision problem.

Publication
IEICE TRANSACTIONS on Communications Vol.E94-B No.5 pp.1153-1160
Publication Date
2011/05/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E94.B.1153
Type of Manuscript
Special Section INVITED PAPER (Special Section on Antenna and Propagation Technologies Contributing to Diversification of Wireless Technologies)
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