Work

Scalable matrix ring data center interconnect based on FSO technology

Year: 2025

Type: article

Abstract: To address escalating data center traffic and scalability issues, this paper introduces a novel hybrid data center network (DCN) architecture using free-space optics (FSO). The proposed three-layer matrix ring topology employs wired intra-layer links and wireless FSO inter-layer connections, reducing cabling and end-to-end delay. An optimized FSO link allocation strategy based on priority principles further enhances performance. Simulations demonstrate significant delay reduction as FSO links increase (up to 35.7%). Comparative analysis against leaf-spine validates the matrix ring's superiority, showing lower average delays under high loads and markedly better, more predictable delay distributions under bursts of traffic. This work offers a promising approach for flexible, efficient, and scalable future DCNs.

Source: Optics Express

DOI: 10.1364/oe.561027

Authors: Qian Kong, Jianning Su, Xiaowei Lu, Liming Liu, Haijun Yuan

Institution: University of Electronic Science and Technology of China

Language: English

Topic: Advanced Optical Network Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: gold

Estimated APC paid: $2,270