Tech

December 17, 2012

Deployable radio frequency data backbone to match fiber optic capacity


Fiber optic cables provide the core backbone for military and civilian networks, enabling Internet, phone, video and other data to move at super-high speeds with virtually no degradation over long distances.

In deployed environments, where a fiber optic backbone doesnít exist, other communications modes are used resulting in reduced data-rate capacity for the warfighter.

DARPAís 100 Gb/s RF Backbone (100G) intends to develop a fiber-optic-equivalent communications backbone that can be deployed worldwide. The goal is to create a 100 Gb/s data link that achieves a range greater than 200 kilometers between airborne assets and a range greater than 100 kilometers between an airborne asset (at 60,000 feet) and the ground. The 100G program goal is to meet the weight and power metrics of the Common Data Link (CDL) deployed by Forces today for high-capacity data streaming from platforms.

A major challenge to providing 100 Gb/s from an airborne asset to the ground is cloud cover. Free-space optical links wonít propagate through the cloud layer, which means RF is the only option. The system will be designed to provide all-weather capability enabling tactically relevant data throughput and link ranges through clouds, fog or rain. Technical advances in modulation of millimeter-wave frequencies open the door to achieving 100Gís goals.

ìProviding fiber-optic-equivalent capacity on a radio frequency carrier will require spectrally efficient use of available RF spectrum,î said Dick Ridgway, DARPA program manager. ì100G plans to demonstrate how high-order modulation and spatial multiplexing can be synergistically combined to achieve 100 Gigabits per second with the size, weight and power needed for a deployable system. We believe that to achieve the programís goals requires the convergence of telecommunications system providers and the defense communications tech base.

DARPA will host a proposersí day Jan. 9, 2013, in Arlington, Va. For details, visit: http://go.usa.gov/gVnB.




All of this week's top headlines to your email every Friday.


 
 

 

Headlines October 22, 2014

News: Northrop challenges 3DELRR contract award - Northrop Grumman has formally issued a protest against the US Air Force’s decision to award its next-generation ground based radar to competitor Raytheon.   Business: Defense firms prefer GOP, but spread campaign cash between political parties - For every campaign contribution from a major arms manufacturer to a Republican candidate...
 
 

News Briefs October 22, 2014

Military converges on scene of Kansas jet crash Military personnel are investigating at the site in southeast Kansas where an Oklahoma Air National Guard fighter jet crashed after a midair collision with another one during a training exercise. The F-16 crashed Oct. 20 in a pasture about three miles northeast of Moline, an Elk County...
 
 
Courtesy photograph

Upgrades ‘new normal’ for armor in uncertain budget environment

Courtesy photograph The current Paladin is severely under-powered and overweight so its speed of cross-country mobility is pretty restricted. The Paladin Integrated Management program is designed to address a number of these we...
 

 

ISR: A critical capability for 21st century warfare

The progressive adaptations and breakthroughs made in the intelligence, surveillance and reconnaissance arena have changed the way wars are fought, and the way commanders think about the battlespace. “Whether we have airmen exploiting full motion video data or serving downrange in the (Central Command) area of responsibility, these individuals make up an enterprise of 30,000...
 
 

Lockheed Martin teams with Roketsan of Turkey on new standoff missile for F-35

Roketsan and Lockheed Martin signed a teaming agreement Oct. 22 for collaboration on the SOM-J, a new generation air-to-surface Standoff Cruise Missile for the F-35 Lightning II. The SOM system is an autonomous, long-range, low-observable, all-weather, precision air-to-surface cruise missile. The SOM-J variant is tailored for internal carriage on the F-35 aircraft. The companies will...
 
 

Army Operating Concept expands definition of combined arms

The Army Operating Concept, published Oct. 7, expands the idea of joint combined-arms operations to include intergovernmental and special operations capabilities, said Gen. Herbert R. McMaster Jr. The new concept includes prevention and shaping operations at the strategic level across domains that include maritime, air, space and cyberspace, he said. It’s a “shift in emphasis,”...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>