[Discuss-gnuradio] Cognitive Radio Articles in EETimes

[Paul Hartke]

Sharing spectrum the smarter way
By Patrick Mannion, EE Times 
April 02, 2004 (12:01 PM EST)
URL: http://eetimes.com/article/showArticle.jhtml?articleId=18700443 
A seismic shift in radio design could break the spectrum-availability 
bottleneck, proponents say, and open up a new frontier of opportunities for 
radio designers and wireless application developers. Cognitive radio — one 
that can sense its environment and location and then alter its power, 
frequency, modulation and other parameters so as to dynamically reuse 
available spectrum — is emerging, but some are already calling it the holy 
grail of wireless design....

High bands or low?
By Patrick Mannion, EE Times 
April 02, 2004 (12:04 PM EST)
URL: http://eetimes.com/article/showArticle.jhtml?articleId=18700444 
Though cognitive radio opens up possibilities for spectrum reuse, from 300 
MHz at the low end right up to 100 GHz at the high end, opinions vary as to 
the optimum path. Intel, Microsoft and others are excited about the lower 
bands, where they could take advantage of TV spectrum to reuse "white" 
space for data services while also creating an interactive TV experience 
for mobile users. But broadcasters are loath to share their spectrum, and 
at least one researcher points to the higher bands as a way around their 
objections....