Analytical Models for Resonant Beam Communications

Light is expected to be utilized as carrier in future high-rate mobile communication systems. Relying on wireless optical channels, resonant beam communications (RBCom) has advantages such as high signal-to-noise ratio (SNR), mobility, and multiple access. However, the RBCom channel is different from other radio or optical wireless communication channels, as it undergoes echo interference. To eliminate the echo interference and preserve the beam resonance, frequency shifting and optical filtering are proposed. Moreover, an exemplary design is presented to demonstrate the unique RBCom procedure and its practical merits.