Subject: [NEXTEL-1] DARPA hopes to give field radio networks a BLAST of speed

From: [email-masked]
Date: Tue, 10 Feb 2004 12:01:02 -0500

02/09/04

DARPA hopes to give field radio networks a BLAST of speed

By William Jackson
GCN Staff

The Defense Advanced Research Projects
Agency has kicked off a program to develop
speedy ad hoc mobile radio networks for
bandwidth-starved troops in the field.

DARPA awarded a one-year, $11.5 million
contract to Lucent Technologies Inc. of
Murray Hill, N.J., to demonstrate the
agency’s Mobile Networked Multiple-Input,
Multiple-Output program.

MIMO uses multiple antennas to send and
receive wireless signals at high speeds over
existing radio frequency spectrum. The goal
of the first phase is to increase spectral
efficiency 20-fold for a mobile ad hoc network operating in multiple frequency
bands.

Lucent will use a technology developed by Bell Labs, called Bell Labs Layered
Space Time. BLAST
uses the natural scattering common to RF signals to enhance transmission
accuracy. Researchers
already have found ways to let several transmissions occupy the same frequency
band and to use
multiple antennas to increase transmission rates.

Lucent will apply ad hoc networking protocols to create self-forming networks
for vehicles on the
move.

The company will develop and build the media access control and physical layers
of the system and
perform a 20-node mobile demonstration. In late fall, Lucent expects to deploy
20 sport utility vehicles
at the Naval Air Engineering Station in Lakehurst, N.J., equipped with mobile
communications gear
incorporating BLAST.

Subcontractors for the program include BBN Technologies of Cambridge, Mass., a
division of Verizon
Communications Inc. of New York; Boeing Co.; Lockheed Martin Corp.;
Rockwell-Collins Inc. of
Cedar Rapids, Iowa; Stevens Institute of Technology, Hoboken, N.J.; and Stow
Research LLC of
Flanders, N.J.

DARPA plans to solicit industry participation for a follow-on phase if the first
phase is successful.
http://gcn.com/vol1_no1/daily-updates/24902-1.html
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