[Olsr-users] Using multiple radio cards

[Jens Nachtigall]

Am Samstag, 9. August 2008 03:56 schrieb (spam-protected):
> Hi victor
>
> Can you provide a link to your thesis or this other research?

Hi,
I've got one ;-)
http://www2.informatik.hu-berlin.de/~nachtiga/sar/Adjacent_Channel_Interference_IWCMC08_PID653269.pdf
It is about routers with two cards in it (like wrapboard) and having there 
antennas separated by different distances. But also about having two 
different single-radio devices nearby (like linksys). 

In short: You should use 2.4 at the one antenna and 5GHz at the other, 
otherwise you get spurios carrier sensing (if both radios want to transmit 
simultaneously, TX-TX) or frame drops (if one antenna tries to receive a weak 
incoming signal, which is destroyed by the second antenna transmitting a 
strong signal, RX-TX). Alternatively, you separate the antennas by a few 
meters and also change their polarisation.

happy reading,
jens