Resonant Beam Communications with Photovoltaic Receiver for Optical Data and Power Transfer

TL;DR

This paper introduces a resonant beam communication system that enables high-rate wireless data transfer and power delivery simultaneously, addressing mobility and safety challenges in future 6G optical communication systems.

Contribution

It proposes a novel RBCom system with an analytical model, demonstrating its capability for safe, mobile, high-rate data, and power transfer in future wireless networks.

Findings

Achieves over 40 mW charging power

Attains 1.6 Gbit/s channel capacity with OFDM

Addresses mobility and safety in optical WPT and WIT

Abstract

The vision and requirements of the sixth generation (6G) mobile communication systems are expected to adopt freespace optical communication (FSO) and wireless power transfer (WPT). The laser-based WPT or wireless information transfer (WIT) usually faces the challenges of mobility and safety. We present a mobile and safe resonant beam communication (RBCom) system, which can realize high-rate simultaneous wireless information and power transfer (SWIPT). We propose an analytical model to depict its carrier beam and information transfer procedures. The numerical results show that RBCom can achieve more than 40 mW charging power and 1:6 Gbit/s channel capacity with orthogonal frequency division multiplexing (OFDM) scheme, which can be applied in future scenario where power and high-rate data are simultaneously desired.