Evaluation of Detection Range of an Active RFID in Outdoor Environment Using Receiver Diversity with Maximal Ratio Combining

Provided by: International Journal of Information and Electronics Engineering
Topic: Mobility
Format: PDF
An analytic approach is presented to evaluate the Bit Error Rate (BER) and detection range of an active RFID network using space diversity technique both at the reader and the tag receiver. The analysis is carried out with battery powered Application Specific Integrated Circuit (ASIC) type RFID tags for a UWB system with different up-link and down-link frequency ranges. Single Input Multiple Output (SIMO) configuration is used to communicate between the reader and the tag. Maximal Ratio Combining (MRC) technique is used for diversity reception. BPSK, QPSK and M-ary PSK (MPSK) are considered with coherent demodulation to evaluate the BER performance.

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