Design and Optimisation of High-Speed Receivers for 6G Optical Wireless Networks

by   Elham Sarbazi, et al.

To achieve multi-Gb/s data rates in 6G optical wireless access networks based on narrow infrared (IR) laser beams, a high-speed receiver with two key specifications is needed: a sufficiently large aperture to collect the required optical power and a wide field of view (FOV) to avoid strict alignment issues. This paper puts forward the systematic design and optimisation of multi-tier non-imaging angle diversity receivers (ADRs) composed of compound parabolic concentrators (CPCs) coupled with photodiode (PD) arrays for laser-based optical wireless communication (OWC) links. Design tradeoffs include the gain-FOV tradeoff for each receiver element and the area-bandwidth tradeoff for each PD array. The rate maximisation is formulated as a non-convex optimisation problem under the constraints on the minimum required FOV and the overall ADR dimensions to find optimum configuration of the receiver bandwidth and FOV, and a low-complexity optimal solution is proposed. The ADR performance is studied using computer simulations and insightful design guidelines are provided through various numerical examples. An efficient technique is also proposed to reduce the ADR dimensions based on CPC length truncation. It is shown that a compact ADR with a height of ≤0.5 cm and an effective area of ≤0.5 cm^2 reaches a data rate of 12 Gb/s with a half-angle FOV of 30^∘ over a 3 m link distance.


page 22

page 23

page 27


Angle Diversity Trasmitter For High Speed Data Center Uplink Communications

This paper proposes an uplink optical wireless communication (OWC) link ...

A Tb/s Indoor MIMO Optical Wireless Backhaul System Using VCSEL Arrays

In this paper, the design of a multiple-input multiple-output (MIMO) opt...

High-Speed Imaging Receiver Design for 6G Optical Wireless Communications: A Rate-FOV Trade-Off

The design of a compact high-speed and wide field of view (FOV) receiver...

Multi-Hop Wireless Optical Backhauling for LiFi Attocell Networks: Bandwidth Scheduling and Power Control

The backhaul of hundreds of light fidelity (LiFi) base stations (BSs) co...

Data center top of rack switch to multiple spine switches optical wireless uplinks

Infrared (IR) uplinks can achieve high data rates, which are essential i...

Optical Wireless Sytems for Spine and Leaf Data Center Downlinks

The continually growing demands for traffic as a result of advanced tech...

Interference Mitigation using Optimized Angle Diversity Receiver in LiFi Cellular network

Light-fidelity (LiFi) is an emerging technology for high-speed short-ran...

Please sign up or login with your details

Forgot password? Click here to reset