Title :
On the Transmit Signal Design at the Reader for RFID MIMO Systems
Author :
Zheng, Feng ; Kaiser, Thomas
Author_Institution :
Inst. of Digital Signal Process., Univ. of Duisburg-Essen, Duisburg, Germany
Abstract :
This paper discusses the reader´s transmit signal design problem for RFID MIMO systems. First a mathematical model for this kind of system is developed from the viewpoint of signal processing. Then two spatial matching transmission schemes, namely matched to a fixed antenna at the tag or matched to a selected antenna at the tag, for the reader´s signals are proposed. Simulation results illustrate that the proposed approaches can greatly improve the BER performance of RFID MIMO systems, compared to the uniform transmission policy.
Keywords :
MIMO communication; error statistics; radiofrequency identification; signal processing; BER performance; RFID MIMO reader systems; mathematical model; reader transmit signal design problem; signal processing; spatial matching transmission schemes; uniform transmission policy; Backscatter; Bit error rate; MIMO; Radiofrequency identification; Signal to noise ratio; Transmitting antennas; MIMO; RFID; Reader; Transmit signal design;
Conference_Titel :
RFID Technology (EURASIP RFID), 2012 Fourth International EURASIP Workshop on
Conference_Location :
Torino
Print_ISBN :
978-1-4673-2602-5
DOI :
10.1109/RFID.2012.11
