Featured Research

from universities, journals, and other organizations

When disaster strikes: Safeguarding networks

Date:
March 5, 2014
Source:
The Optical Society
Summary:
Disasters both natural and human-caused can damage or destroy data and communications networks. New information on strategies that can mitigate the impacts of these disasters.

Disasters both natural and human-caused can damage or destroy data and communications networks. Several presentations at the 2014 OFC Conference and Exposition, being held March 9-13 in San Francisco, Calif., USA will present new information on strategies that can mitigate the impacts of these disasters.

Related Articles


New Algorithm Finds Safe Refuge for Cloud Data

Much of our computing these days, from browsing websites and watching online videos to checking email and following social networks, relies on the cloud. The cloud lives in data centers -- massive warehouses filled with thousands of servers that run constantly. Disasters such as earthquakes, tornadoes, or even terrorist attacks, can damage the data centers and the communication links between them, causing massive losses in data and costly disruptions.

To mitigate such potential damage, researchers from the University of California, Davis (UC Davis), Sakarya University in Turkey, and Politecnico de Milano in Italy, first analyzed the risk that a disaster may pose to a communications network, based on the possible damage of a data center or the links that connect them to users. Then, they created an algorithm that keeps data safe by moving or copying the data from data centers in peril to more secure locations away from the disaster. The algorithm assesses the risks for damage and users' demands on the network to determine, in real-time, which locations would provide the safest refuge from a disaster.

"Our content placement solution can be implemented with some modifications on any existing settings of data centers and it is adaptable to different dynamic disaster scenarios," said researcher Sifat Ferdousi of UC Davis. "This can highly benefit the network providers in designing disaster-resilient cloud networks."

Integrating Wireless with Fiber for Temporary Emergency Networks

Earthquakes, tsunamis, and other natural disasters can sever the optical fibers that carry data across long distances, leaving telecommunications networks useless. If fiber-optic cables are down, wireless communication can fill the void and be part of a temporary, emergency network. But for such a system to work, wireless technology would have to be integrated with the fiber-optic network that transports data around the world.

Such an integrated wireless optical system would combine the speed and bandwidth of fiber optics with the mobility and range of a wireless network. This system could also be applied in home networks, in which data is sent via optical cables to the home then broadcasted wirelessly.

One big challenge of an integrated system, however, is to develop the wireless links that can handle the speed and capacity of optical cables. Researchers from Fudan University in Shanghai and ZTE (TX), Inc. in Morristown, N.J., USA have now developed a new antenna architecture that allows for a simple and high-speed integrated wireless optical system. The design relies on two pairs of antennas, explains Jianjun Yu of ZTE. Because each pair is polarized differently and isolated, there's no interference between the two pairs, allowing for a simpler structure and a larger transmission capacity. The new system achieves a data-transmission rate of 146 gigabits per second (Gb/s), which is the highest bit-rate-per-channel in a wireless signal shown so far, Yu says.


Story Source:

The above story is based on materials provided by The Optical Society. Note: Materials may be edited for content and length.


Cite This Page:

The Optical Society. "When disaster strikes: Safeguarding networks." ScienceDaily. ScienceDaily, 5 March 2014. <www.sciencedaily.com/releases/2014/03/140305125142.htm>.
The Optical Society. (2014, March 5). When disaster strikes: Safeguarding networks. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2014/03/140305125142.htm
The Optical Society. "When disaster strikes: Safeguarding networks." ScienceDaily. www.sciencedaily.com/releases/2014/03/140305125142.htm (accessed October 25, 2014).

Share This



More Matter & Energy News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
Real-Life Transformer Robot Walks, Then Folds Into a Car

Real-Life Transformer Robot Walks, Then Folds Into a Car

Buzz60 (Oct. 24, 2014) Brave Robotics and Asratec teamed with original Transformers toy company Tomy to create a functional 5-foot-tall humanoid robot that can march and fold itself into a 3-foot-long sports car. Jen Markham has the story. Video provided by Buzz60
Powered by NewsLook.com
Police Testing New Gunfire Tracking Technology

Police Testing New Gunfire Tracking Technology

AP (Oct. 24, 2014) A California-based startup has designed new law enforcement technology that aims to automatically alert dispatch when an officer's gun is unholstered and fired. Two law enforcement agencies are currently testing the technology. (Oct. 24) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins