WLANs are jump-starting cognitive radio

[David Farber <dave () farber net>]

Begin forwarded message:

From: Dewayne Hendricks <dewayne () warpspeed com>
Date: November 16, 2004 4:59:29 AM EST
To: Dewayne-Net Technology List <dewayne-net () warpspeed com>
Subject: [Dewayne-Net] WLANs are jump-starting cognitive radio
Reply-To: dewayne () warpspeed com



[Note:  This item comes from reader Jack Powers.  DLH]

> From: Jack Powers <pheezer () cryptnet org>
> Date: November 15, 2004 2:08:04 PM PST
> To: Dewayne Hendricks <dewayne () warpspeed com>
> Subject: WLANs are jump-starting cognitive radio
>
>
> >         WLANs are jump-starting cognitive radio
> >
> >         Posted : 16 Nov 2004
> >
> >         Cognitive radio might seem to be a radical concept,
> > but WLAN designers have already implemented many CR
> > techniques, some of which are quite sophisticated.
> > Because these techniques can be expanded in an
> > evolutionary way to achieve the full promise of CR, they
> > point the way toward the future of wireless
> > communications.
> >
> >         The basic premise of CR is that radios can better
> > use the available spectrum by detecting their
> > environment and adapting accordingly. Regulatory
> > agencies such as the FCC require that 802.11a radios
> > detect radar signals and avoid interfering with them.
> > This ability to dodge radar requires a significant
> > amount of CR-type adaptability and it is just the
> > beginning of WLAN CR capabilities.
>
> <snip>
> http://www.eetasia.com/article_content.php3?article_id=8800351549


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