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Date:      Sun, 14 Jul 2002 12:06:25 -0700 (PDT)
From:      Vinod <geekvinod@yahoo.com>
To:        freebsd-mobile@freebsd.org
Subject:   wi  TX  rate mechanism
Message-ID:  <20020714190625.79562.qmail@web21108.mail.yahoo.com>

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Hi there all.I had a question about the wi TX
mechanism. I have observed that sometimes the TX rate
of my wi card fluctuates between 11Mbps, 6Mbps and
2Mbps.Why does this happen?
if its due to interference why should the TX rate be
affected?shouldnt just the receiving station be
affected?
Was wondering if the receiving station tells the
sender to slow down.does it?

Another question i had is about the throughput i get
and what the wicontrol command shows my TX rate is.
I have seen that i get about 5Mbps throughput when the
TX rate is shown to be 11Mbps.so can i assume i will
always get about 5Mbps when wicontrol shows the rate
to be 11Mbps?  if i start getting lesser throughput
then will wicontrol also be showing a lesser TX rate
like 6Mbps or 2Mbps ? What i mean in short is will
wicontrol automatically show smaller TX rates at the
sender when my receiver throughput falls.this is
related to my first question actually.
Thanks in advance,
Vinod





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