looking for consultant

[Eric Diethorn]

Hi Hong,

Thanks for your comments. Yes, I think I understand your points/concerns.
We are just trying to understand the factors affecting link quality in a
UDP (non retransmission) application. The automatic RF power modulation
scheme seems to under-power the radio a bit for our application. I would
like to experiment with the constant TX power options to determine the
effect of power on our issue. What I will do with the results of such
experiments I do not yet know.

Do you have any experience in this aspect?

Eric

---
Eric Diethorn
mh acoustics LLC






On 12/4/12 2:58 PM, "hong zhang" <henryzhang62 at yahoo.com> wrote:

>Eric,
>
>Current Wifi Tx will be automatically adjusted for best signal with
>distance between AP and device.
>
>If Tx power is changed, all those WiFi RF calibration, regulatory
>settings, max power limits, band-edge reductions, rate to power settings,
>and a lot of other WiFi configuration information may be impacted.
>
>---henry
>
>--- On Tue, 12/4/12, hong zhang <henryzhang62 at yahoo.com> wrote:
>
>> From: hong zhang <henryzhang62 at yahoo.com>
>> Subject: Re: looking for consultant
>> To: libertas-dev at lists.infradead.org, "Eric Diethorn"
>><ejd at mhacoustics.com>
>> Date: Tuesday, December 4, 2012, 1:23 PM
>> Eric,
>> 
>> could you please explain what benefit you will get to change
>> Tx power?
>> 
>> --henry
>> 
>> --- On Tue, 12/4/12, Eric Diethorn <ejd at mhacoustics.com>
>> wrote:
>> 
>> > From: Eric Diethorn <ejd at mhacoustics.com>
>> > Subject: Re: looking for consultant
>> > To: "hong zhang" <henryzhang62 at yahoo.com>,
>> libertas-dev at lists.infradead.org
>> > Date: Tuesday, December 4, 2012, 10:59 AM
>> > Hi Henry,
>> > 
>> > We were able to get firmware and some source from
>> wi2wi, so
>> > we have made
>> > some progress. However, the code does not appear to be
>> > compatible with
>> > newer releases of linux.
>> > 
>> > Eric
>> > 
>> > ---
>> > Eric Diethorn
>> > mh acoustics LLC
>> > 
>> > 
>> > 
>> > 
>> > 
>> > 
>> > On 12/3/12 2:01 PM, "hong zhang" <henryzhang62 at yahoo.com>
>> > wrote:
>> > 
>> > >Eric,
>> > >
>> > >I do not think Marvell will provide source codes
>> of
>> > firmware.
>> > >User should not be allowed to change TX power by
>> law.
>> > >
>> > >
>> > >---henry
>> > >
>> > >
>> > >--- On Thu, 11/29/12, Eric Diethorn <ejd at mhacoustics.com>
>> > wrote:
>> > >
>> > >> From: Eric Diethorn <ejd at mhacoustics.com>
>> > >> Subject: looking for consultant
>> > >> To: libertas-dev at lists.infradead.org
>> > >> Date: Thursday, November 29, 2012, 7:56 PM
>> > >> Hello libertas Community,
>> > >> 
>> > >> I am looking for a consultant who can assist
>> us
>> > with
>> > >> modifications to the
>> > >> liberates_sdio driver and firmware to provide
>> RF
>> > power
>> > >> control and
>> > >> monitoring. I'd like to use the tools iwconfig
>> or
>> > iw to
>> > >> control transmit
>> > >> power level (txpower), which does not seem to
>> be
>> > supported
>> > >> at the moment
>> > >> but once was, but I'd also like to consider
>> > modifying the
>> > >> adaptive power
>> > >> control mechanism (auto). I am developing on
>> the
>> > Gumstix
>> > >> Overo IronSTORM,
>> > >> using linux 3.2 and the standard
>> libertas_sdio
>> > driver and
>> > >> firmware for the
>> > >> wi2wi module.
>> > >> 
>> > >> Thanks,
>> > >> 
>> > >> Eric Diethorn
>> > >> ejd at mhacoustics.com
>> > >> 
>> > >> ---
>> > >> Eric Diethorn
>> > >> mh acoustics LLC
>> > >> 
>> > >> 
>> > >> 
>> > >>
>> _______________________________________________
>> > >> libertas-dev mailing list
>> > >> libertas-dev at lists.infradead.org
>> > >> http://lists.infradead.org/mailman/listinfo/libertas-dev
>> > >> 
>> > 
>> > 
>> > 
>> > _______________________________________________
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>> > libertas-dev at lists.infradead.org
>> > http://lists.infradead.org/mailman/listinfo/libertas-dev
>> > 
>> 
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