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As a key low-power communication technique, backscatter communication hasreceived significant attention since the rising of the Internet of Things(IoT). We revisit the state-of-the-art backscatter system, RBLE [1]. It solvesseveral key reliability issues of backscatter system including unreliabletwo-step modulation, productive-data dependency, and lack of interferencecountermeasures. We implement a Matlab simulation version of this. It uses thereverse whiten technique to generate a single tone signal, operates directfrequency on it and calculates the bit error rate (BER) to evaluate. We givethe spectrograms of the middle waveform results, compare the influence ofdifferent modulation methods and analyze the cause of high BER. In the end, wediscuss the future prospects of the applications using RBLE.

Revisiting the RBLE design based on Matlab simulation