[Click] 802.11 tunning

[David Fuste]

Hi all,
this is the solution using the madwifi driver:
http://madwifi.org/wiki/UserDocs/LongDistance

Thanks John!

dfuste at ac.upc.edu wrote:

>Hi John,
>thanks a lot for your extra information about the madwifi driver.
>I will post how to solve this problem when I have the solution.
>
>david
>
>Mensaje citado por John Bicket <jbicket at gmail.com>:
>
>  
>
>>Hi David,
>>Those are just constants defined in the ieee 802.11 specs and changing
>>them won't  do what you want; they are mainly used for calculating the
>>duration of packets, but otherwise have no affect on the actual values
>>used by wireless hardware.  Some cards allow you to change the mac
>>level parameters; I know the madwifi driver has some mechanisms for
>>changing difs and sifs to make long distance links function.
>>
>>John
>>
>>
>>On 4/25/06, David Fuste <dfuste at ac.upc.edu> wrote:
>>    
>>
>>>Hi all,
>>>Currently, I am doing research in the area of wireless ad-hoc networks
>>>and more exactly, in some improvements to achieve better operation and
>>>functioning of these networks.
>>>One of my needs is to be able to "tune" the values of DIFS, SIFS, NAV...
>>>parameters of the 802.11 standard. In Click Modular Router, I've found
>>>these parameters in "clicknet/wifi.h".
>>>So, I just want to know if these parameters (constants in wifi.h) are
>>>beared in mind by the kernel (or wireless iface) when click starts to
>>>run, or simply are values never used by the kernel of linux (so, they
>>>are only nomenclature in wifi.h).
>>>I mean, if I change the value of the SIFS for example, will it cause
>>>changes in the time that the wireless interface wait for sending ACKs or
>>>not? So, does Click can really change the value of the Short Inter Frame
>>>Space of the wireless interface?
>>>
>>>Thanks a lot!
>>>_______________________________________________
>>>click mailing list
>>>click at amsterdam.lcs.mit.edu
>>>https://amsterdam.lcs.mit.edu/mailman/listinfo/click
>>>
>>>
>>>      
>>>
>
>
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