Non-imaging receiver design for terabit laser-based optical wireless communication in 6G data center networks

Abstract

In this paper, we consider a laser-based spatial multiplexing multiple-input multiple-output (MIMO)-orthogonal frequency division multiplexing (OFDM) optical wireless communication (OWC) system architecture as a costeffective solution for terabit inter-rack communication in sixth generation (6G) data center networks (DCNs). We put forward the design of a multi-element non-imaging receiver based on compound parabolic concentrators (CPCs). Simulation results show that the proposed receiver design supports aggregate data rates above 1 Tb/s under any type of misalignment errors for typical link distances between the racks in a DCN.