Photonic Hybrid Precoding for Millimeter Wave RoF Systems

TL;DR

This paper introduces a photonic hybrid precoding approach for millimeter wave radio-over-fiber systems, leveraging silicon photonic integrated circuits to overcome hardware limitations and improve signal processing performance.

Contribution

It presents a novel photonic hybrid precoding model that utilizes Si-PICs to enhance mmwave radio-over-fiber systems, addressing hardware constraints and interference issues.

Findings

Significant coding gains over conventional precoding methods

Effective mitigation of inter-user interference

Improved handling of large mmwave propagation losses

Abstract

Large propagation path loss and limited scattering of millimeter wave (mmwave) channels create new challenges for physical layer signal processing. Hence, in this article, we propose a photonic hybrid precoding model for mmwave radio-over-fiber systems that overcomes hardware constraints on radio frequency precoding. With help of silicon photonic integrated circuits (Si-PICs), the photonic precoding strategy combats the large losses of mmwave and mitigates inter-user interference. Simulation results show that the proposed model can offer significant coding gains over conventional precoding systems.