Revisiting the RBLE design based on Matlab simulation

Abstract

As a key low-power communication technique, backscatter communication has received significant attention since the rising of the Internet of Things (IoT). We revisit the state-of-the-art backscatter system, RBLE [1]. It solves several key reliability issues of backscatter system including unreliable two-step modulation, productive-data dependency, and lack of interference countermeasures. We implement a Matlab simulation version of this. It uses the reverse whiten technique to generate a single tone signal, operates direct frequency on it and calculates the bit error rate (BER) to evaluate. We give the spectrograms of the middle waveform results, compare the influence of different modulation methods and analyze the cause of high BER. In the end, we discuss the future prospects of the applications using RBLE.