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Intelligent noncoherent sequence equals coherent detection: Experimental proof in industrial RFID

Ouroutzoglou Michail, Bletsas Aggelos, Karystinos Georgios

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Year 2018
Type of Item Conference Full Paper
Bibliographic Citation M. Ouroutzoglou, A. Bletsas and G.N. Karystinos, "Intelligent noncoherent sequence equals coherent detection: Experimental proof in industrial RFID," in 7th International Conference on Modern Circuits and Systems Technologies, 2018, pp. 1-4. doi: 10.1109/MOCAST.2018.8376616
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This work presents the industrial RFID interrogation protocol and describes coherent (with estimated channel using short preambles) and state-of-the-art, noncoherent sequence detection algorithms. Performance is compared, utilizing both simulation and experimental results, from a software-defined testbed. This work puts forth, for the first time in the literature, experimental demonstration of intelligent, noncoherent, generalized likelihood ratio test-optimal sequence detection in an industrial setup. It is shown that performance of noncoherent, as well as coherent detection of the 128-bit tag message sequence coincide. Thus, removal of preamble/pilot bits and adoption of the noncoherent algorithm could improve reading speed of RFID tags at the reader, adding commercial value, without sacrificing bandwidth, reliability or computation power.