Optimizing data center placement and network design to strengthen cloud computing

February 14, 2017

LOS ANGELES - Telecommunication experts estimate the amount of data stored "in the cloud" or in remote data centers around the world, will quintuple in the next five years. Whether it's streaming video or business' database content drawn from distant servers, all of this data is -- and will continue in the foreseeable future to be - accessed and transmitted by lasers sending pulses of light along long bundles of flexible optical fibers.

Traditionally, the rate information is transmitted does not consider the distance that data must travel, despite the fact that shorter distances can support higher rates. Yet as the traffic grows in volume and uses increasingly more of the available bandwidth, or capacity to transfer bits of data, researchers have become increasingly aware of some of the limitations of this mode of transmission.

New research from Nokia Bell Labs in Murray Hill, New Jersey may offer a way to capitalize on this notion and offer improved data transfer rates for cloud computing based traffic. The results of this work will be presented at the Optical Fiber Communications Conference and Exhibition (OFC), held 19-23 March in Los Angeles, California, USA.

"The challenge for legacy systems that rely on fixed-rate transmission is that they lack flexibility," said Dr. Kyle Guan, a research scientist at Nokia Bell Labs. "At shorter distances, it is possible to transmit data at much higher rates, but fixed-rate systems lack the capability to take advantage of that opportunity."

Guan worked with a newly emerged transmission technology called "distance-adaptive transmission," where the equipment that receives and transmits these light signals can change the rate of transmission depending on how far the data must travel. With this, he set about building a mathematical model to determine the optimal lay-out of network infrastructure for data transfer.

"The question that I wanted to answer was how to design a network that would allow for the most efficient flow of data traffic," said Guan. "Specifically, in a continent-wide system, what would be the most effective [set of] locations for data centers and how should bandwidth be apportioned? It quickly became apparent that my model would have to reflect not just the flow of traffic between data centers and end users, but also the flow of traffic between data centers."

External industry research suggests that this second type of traffic, between the data centers, represents about one-third of total cloud traffic. It includes activities such as data backup and load balancing, whereby tasks are completed by multiple servers to maximize application performance.

After accounting for these factors, Guan ran simulations with his model of how data traffic would flow most effectively in a network.

"My preliminary results showed that in a continental-scale network with optimized data center placement and bandwidth allocation, distance-adaptive transmission can use 50 percent less wavelength resources or light transmission, and reception equipment, compared to fixed-rate rate transmission," said Guan. "On a functional level, this could allow cloud service providers to significantly increase the volume of traffic supported on the existing fiber-optic network with the same wavelength resources."

Guan recognizes other important issues related to data center placement. "Other important factors that have to be considered include the proximity of data centers to renewable sources of energy that can power them, and latency -- the interval of time that passes from when an end user or data center initiates an action and when they receive a response," he said.

Guan's future research will involve integrating these types of factors into his model so that he can run simulations that even more closely mirror the complexity of real-world conditions.
Media Registration: A media room for credentialed press and analysts will be located on-site at the Los Angeles Convention Center, 19-23 March 2017. Media interested in attending the event should register on the OFC website media center: Media Center.

ABOUT OFC The Optical Fiber Conference and Exposition (OFC) is the largest global conference and exhibition for optical communications and networking professionals. For more than 40 years, OFC has drawn attendees from all corners of the globe to meet and greet, teach and learn, make connections and move business forward.

OFC includes dynamic business programming, an exhibition of more than 600 companies, and high impact peer-reviewed research that, combined, showcase the trends and pulse of the entire optical networking and communications industry. OFC is managed by The Optical Society (OSA) and co-sponsored by OSA, the IEEE Communications Society (IEEE/ComSoc), and the IEEE Photonics Society. OFC 2017 will be held from 19-23 March 2017 at the Los Angeles Convention Center, California, USA. Follow @OFCConference, learn more OFC Conference LinkedIn and watch highlights OFC YouTube.

Media Contacts:

Rebecca B. Andersen
The Optical Society

Joshua Miller
The Optical Society

The Optical Society

Related Mathematical Model Articles from Brightsurf:

A mathematical model facilitates inventory management in the food supply chain
A research study in the Diverfarming project integrates transport resources and inventory management in a model that seeks economic efficiency and to avoid shortages

Mathematical modelling to prevent fistulas
It is better to invest in measures that make it easier for women to visit a doctor during pregnancy than measures to repair birth injuries.

Predicting heat death in species more reliable with new mathematical model
An international research with the involvement of the Universitat Autònoma de Barcelona (UAB), published in Science, has developed a new dynamic mathematical model which represents a change in paradigm in predicting the probability of heat-related mortality in small species.

Using a Gaussian mathematical model to define eruptive stages of young volcanic rocks
Precise dating of young samples since the Quaternary has been a difficult problem in the study of volcanoes and surface environment.

Moffitt mathematical model predicts patient outcomes to adaptive therapy
In an article published in Nature Communications, Moffitt Cancer Center researchers provide a closer look at a mathematical model and data showing that individual patient alterations in the prostate-specific antigen (PSA) biomarker early in cancer treatment can predict outcomes to later treatment cycles of adaptive therapy.

New mathematical model can more effectively track epidemics
As COVID-19 spreads worldwide, leaders are relying on mathematical models to make public health and economic decisions.

Mathematical model could lead to better treatment for diabetes
MIT researchers have developed a mathematical model that can predict the behavior of glucose-responsive insulin in humans and in rodents.

New mathematical model reveals how major groups arise in evolution
Researchers at Uppsala University and the University of Leeds presents a new mathematical model of patterns of diversity in the fossil record, which offers a solution to Darwin's ''abominable mystery'' and strengthens our understanding of how modern groups originate.

Mathematical model reveals behavior of cellular enzymes
Mathematical modeling helps researchers to understand how enzymes in the body work to ensure normal functioning.

New mathematical model for amyloid formation
Scientists report on a mathematical model for the formation of amyloid fibrils.

Read More: Mathematical Model News and Mathematical Model Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.