Ahmed forgot to tell us: what method is he using to measure the delay?
If he is using some RF measurement equipment (e.g. RF vector analyzer or
I/Q demodulator+osciloscope) and he has the wifi card antenna output
connected to the measurement equipment by a coaxial cable, then there
should be n
> If you remove the antenna of your card, wind the receive gain down to the
> minimum possible value, your card card will receive the minimum of packets
> from other boxes.
Wouldn't it be even better to do a proper termination between ground and
signal, e.g. by a shielded 50 Ohm resistor?
(Not s
Hi,
On Thu, 15 Apr 2010, Nabeel Ahmed wrote:
> Thanks for your fast response. I did disable virtual carrier sense as
> well. But, I still see these unpredictable delays. Can you think of what
> possibly the hardware may be doing during these transmission periods
> that could introduce such delays?
Hi,
I'm a little confused by what scan world means? Can you elaborate on
what you mean by that?
I'm sure there could be a way to inject (or intercept) raw packets
to/from the driver (most likely through the ioctl interface). However,
they would still need to go through the transmit chain (i.e
Hi Bruno,
Thanks for your response. I checked the busy counter values and indeed
they count down more slowly when the noise floor is raised. So, raising
the noise floor does make the receiver more immune to environmental noise.
Regarding periodic calibration, the scheduling I'm doing happens at
Hi,
Two thoughts:
1. Scan world to reset I&Q and noise floor and other params.
2. Scan world to look for other special signals. Wake on lan,
radar, set interference mode, etc.
Comment:
The hardware/software MUST have a place where simple raw packets can
be intercepted and
Hi Nabeel
Did you disable the backoff, also try reducing the DIFS period. I think you
cannot make it zero but up to a minimum possible value.
Shashi
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ath5k-devel mailing
On Friday 16 April 2010 03:43:30 Nabeel Ahmed wrote:
> Hi All,
>
> I'm wondering if someone can provide me some hints to tackle a problem
> I've been hitting my head on for the last couple of days. I've been
> working with the ath5k code for the last couple of weeks and am running
> into some perf
On Friday 16 April 2010 03:43:30 Nabeel Ahmed wrote:
> Hi All,
>
> I'm wondering if someone can provide me some hints to tackle a problem
> I've been hitting my head on for the last couple of days. I've been
> working with the ath5k code for the last couple of weeks and am running
> into some perf
Nabeel Ahmed a écrit :
> Hi Benoit,
>
> Thanks for your fast response. I did disable virtual carrier sense as
> well. But, I still see these unpredictable delays. Can you think of
> what possibly the hardware may be doing during these transmission
> periods that could introduce such delays?
>
>
Hi Benoit,
Thanks for your fast response. I did disable virtual carrier sense as
well. But, I still see these unpredictable delays. Can you think of what
possibly the hardware may be doing during these transmission periods
that could introduce such delays?
Thanks.
-
Nabeel Ahmed.
Benoit P
Nabeel Ahmed a écrit :
> Hi All,
>
> I'm wondering if someone can provide me some hints to tackle a problem
> I've been hitting my head on for the last couple of days. I've been
> working with the ath5k code for the last couple of weeks and am running
> into some performance issues with the driv
Hi All,
I'm wondering if someone can provide me some hints to tackle a problem
I've been hitting my head on for the last couple of days. I've been
working with the ath5k code for the last couple of weeks and am running
into some performance issues with the driver.
My problem involves schedulin
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