Simultaneous Lightwave Information and Power Transfer via Scattering and Line-of-Sight Links

Abstract

Motivated by the fact that light can traverse through water or from air to water, we address simultaneous light information and power transfer (SLIPT), which can perform wireless charging while maintaining certain communication rate. We propose the architecture with line-of-sight (LOS) link for energy transmission and non-line-of-sight (NLOS) link for communication. We propose binary-level information modulation, and analyze the energy transfer performance and the detection bit error rate (BER). We further optimize the binary-level modulation and the load resistance at the receiver, to maximize the energy transfer under the detection BER constraint. The energy and information transmission is evaluated under a realistic application scenario.