Optical Networks for Composable Data Centers

by   Opeyemi O. Ajibola, et al.

Composable data centers (DCs) have been proposed to enable greater efficiencies as the uptake of on-demand computing services grows. In this article we give an overview of composable DCs by discussing their enabling technologies, benefits, challenges, and research directions. We then describe a network for composable DCs that leverages optical communication technologies and components to implement a targeted design. Relative to the implementation of a generic design that requires a (high capacity) dedicated transceiver on each point-to-point link on a mesh optical fabric in a composable DC rack, the targeted design can significantly reduce capital expenditure (by up to 34 times) because fewer transceivers are used. This is achieved with little or no degradation of expected performance in composable DCs.


page 1

page 2

page 3

page 4


Network Topologies for Composable Data Centres

Suitable composable data center networks (DCNs) are essential to support...

Terahertz Technologies to Deliver Optical Network Quality of Experience in Wireless Systems Beyond 5G

This article discusses the basic system architecture for terahertz (THz)...

Multipoint-to-point data aggregation using a single receiver and frequency-multiplexed intensity-modulated ONUs

We demonstrate 2.5-GHz-spacing frequency multiplexing capable of aggrega...

Counter-Propagating Core Assignment in Multi-Core Fiber Optical Networks to Reduce Inter-Core Crosstalk and Capacity Wastage

Inter-core crosstalk is one of the most serious impairments for signal t...

Traffic Behavior in Cloud Data Centers: A Survey

Data centers (DCs) nowadays house tens of thousands of servers and switc...

Benefits of Rate-Sharing for Distributed Hypothesis Testing

We study distributed binary hypothesis testing with a single sensor and ...

Optical Network Design for 4G LTE

The number of mobile users is increasing rapidly, 3GPP initiated a new t...