Email Delivery

Receive new posts as email.

Email address

Syndicate this site

RSS 0.91 | RSS 2.0
RDF | Atom
Podcast only feed (RSS 2.0 format)
Get an RSS reader
Get a Podcast receiver


About This Site
Contact Us
Privacy Policy



Web this site

January 2007
Sun Mon Tues Wed Thurs Fri Sat
  1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31      

Stories by Category

Hardware :: Hardware CPEs Chips Smart Antennas
Industry News :: Industry News Trials Vendor News competitive landscape conferences financial deals mergers and acquisitions interoperability launches organizations
Industry Segments :: Industry Segments Voice cellular municipal operators rural applications
Mobile WiMax :: Mobile WiMax
Partnerships :: Partnerships
Regulatory :: Regulatory Auctions
Spectrum :: Spectrum 2.3 GHz 2.4 GHz 2.5 GHz 3.5 GHz 5 GHz ITFS Licensed spectrum
Standards :: Standards 802.16-2004 802.16-2005 (16e) 802.20 WiBro
WiMax Forum :: WiMax Forum Certification
applications :: applications
future technologies :: future technologies
hype :: hype
international :: international
launch plans :: launch plans
mainstream press :: mainstream press
mesh :: mesh
new technologies :: new technologies
personnel :: personnel
proprietary technologies :: proprietary technologies
research :: research
roaming :: roaming
security :: security
temporary networks :: temporary networks
unique :: unique


January 2007 | December 2006 | November 2006 | October 2006 | September 2006 | August 2006 | July 2006 | June 2006 | May 2006 | April 2006 | March 2006 | February 2006 | January 2006 | December 2005 | November 2005 | October 2005 | September 2005 | August 2005 | July 2005 | June 2005 | May 2005 | April 2005 | March 2005 | February 2005 | January 2005 | December 2004 | November 2004 |

Recent Entries

Nokia Will Supply Sprint with WiMax Gear
Sprint May Add Nokia to Mobile WiMax Vendor Line-Up
NextWave, Clearwire Both Poised for Stock Offerings
Clearwire Reveals Increased Spectrum Holdings
German Broadband Wireless Auction Sees Clearwire, Inquam, DBD as Winners
India's First Certified WiMax Network
Germany Starts WiMax Auction Next Week
Intel Shows WiMax, Wi-Fi, Cell Chip with MIMO
Alvarion Mixes Wi-Fi, pre-WiMax, WiMax
Nortel in Japan, Taiwan with WiMax

Site Philosophy

This site operates as an independent editorial operation. Advertising, sponsorships, and other non-editorial materials represent the opinions and messages of their respective origins, and not of the site operator or JiWire, Inc.


Entire site and all contents except otherwise noted © Copyright 2001-2006 by Glenn Fleishman. Some images ©2006 Jupiterimages Corporation. All rights reserved. Please contact us for reprint rights. Linking is, of course, free and encouraged.

Powered by
Movable Type

« Sydney Broadband Wireless Network Success | Main | BT Targets Rural Areas With WiMax »

February 28, 2005

India, Canada Team up on Cognitive Radio System

By Nancy Gohring

Telecom agencies in India and Canada are working together on a cognitive radio-based broadband wireless technology: The networks would operate in the 5 GHz spectrum (or possibly the licensed MMDS bands) and transmit as far as 1 kilometer to 2 kilometers. The base station would use as many as 48 antenna beams. The system would use cognitive radio technology to identify interference and poor links and then change its own signal transmission to improve the weak links. Ultimately the agencies hope to develop this as a low-costs system that can be used in underdeveloped regions or areas with aging telecom infrastructure.

It’s interesting to see that an Indian government body is involved in such research which appears to be primarily targeted at unlicensed bands, given that India only very recently de-licensed the 2.4 GHz band for Wi-Fi. The 5.1 GHz band is still only available for unlicensed use indoors.

There was a time when a few startup companies were trying to sell broadband wireless systems that used a handful of narrow antennas that could adapt to the environment to deliver the best signal. None of them used as many as 48 beams and they wouldn’t have been as sophisticated as cognitive radio. The only name I remember is BeamReach Networks, though I’m not totally convinced they’re still in business—the most recent press release listed is from early 2004. There were others too but I can’t recall their names.

Posted by nancyg at February 28, 2005 2:32 PM

Categories: new technologies

Trackback Pings

TrackBack URL for this entry: