On Apr 15, 2004, at 6:53 PM, [EMAIL PROTECTED] wrote:
Many Wi-Fi companies employ diversity in their receivers.
none do per-packet diversity in the OFDM modes. e.g. "show me".
Co-Phasing alone?
* How would you cancel the phase distortion?
For 802.11? I wouldn't.
* How would you deal with avoidance separation?
distributed CCA.
Simply "Co-phasing" antennas does equate to a smart antenna.
I didn't say it did. I (basically) said that you had the beginnings of a smart antenna system. e.g. "You're into smart antenna land."
Smart antennas employ beam forming, beam switching and selection diversity.
Diversity is a system which employs co-phasing as well other techniques.
Well, there is no "co-phasing" in switched diversity, which is what you were describing.
Jim Thompson wrote:
Note that with 802.11g or 802.11a, this gets "difficult", since there isn't a lot of time to switch back and forth between the two antennas. One could build a parallel receiver, but then you might as well co-phase and add the two antennas together, and then you're into "smart" antenna-land (and its expensive).
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