Subject: Re: rate adaptation for BSD
To: None <tech-net@netbsd.org, bsd-wireless@lists.bawug.org>
From: David Young <dyoung@pobox.com>
List: tech-net
Date: 07/01/2003 02:25:44
On Fri, Jun 27, 2003 at 12:50:52PM +0200, Ignatios Souvatzis wrote:
> On Thu, Jun 26, 2003 at 10:18:18PM -0500, David Young wrote:
> 
> >     Sometimes an AP will behave differently than I expect, sending long
> >     packets at higher rates than it sends short ones to the same client.
> 
> Sounds similar to the "microwave compatibility" function some
> hardware has...  basically, if you expect semi-regular errors, you
> want to limit individual packet lenghtes in-air, to minimize the
> data you have to resend if an error occurs.

  I guess that our 2.4GHz FHSS phone system, if it is very "chatty,"
  might cause the same adaptation.  Packets sent very fast will fit more
  often between the phones' interfering hops than slow packets. I need
  to find a pristine 2.4GHz environment for further testing.

Dave

-- 
David Young             OJC Technologies
dyoung@ojctech.com      Urbana, IL * (217) 278-3933