Multi-tag spatial multiplexing in UHF RFID systems

IEICE Electronics Express

Joan Melià-Seguí²  Rafael Pous²  Javier Dacuña¹ 

[1] Department of Signal Theory and Communications, Universitat Politècnica de Catalunya;Department of Information and Communication Technologies, Universitat Pompeu Fabra

关键词: RFID;    MIMO;    Blind signal separation;   

DOI  :  10.1587/elex.9.1701

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(12)When multiple RFID tags have to be identified in an RFID system an anti-collision protocol must be used to avoid two tags responding at the same time. Tags must respond in different time slots in order to be identified, since current RFID systems do not allow readers to communicate with different tags simultaneously. Multiple Input Multiple Output techniques can be used along with Blind Signal Separation algorithms to identify multiple RFID tags at the same time, thus increasing the read-rate and reducing the time needed to identify large amounts of tags.

【 授权许可】

Unknown