ORBIT-USER: Interference from Sandbox to Main Grid

Kishore Ramachandran kishore at winlab.rutgers.edu
Fri Mar 16 13:32:04 EDT 2007


Adding to what Haris said, you will see much lesser interference in the 5Ghz
(802.11a) band. Before your experiment, you can choose a channel on which
there is no interference (iwlist ath0 scan).

On 3/16/07, Haris Kremo <harisk at winlab.rutgers.edu> wrote:
>
> The sandbox nodes are in a separate room and connected directly with
> cables. Still, the leakage of EM waves is inevitable. The distance
> from the first row of the main grid is roughly 20 meters.
>
> Experimenters previously reported observing transmissions from the
> sandboxes. Keep in mind that even the sloppiest card can easily have
> sensitivity of -80dBm, and than, due to the nature of CSMA it can
> affect traffic on the grid.
>
> Another issue, which is even more important is that at least 3 access
> points operate in 2.4 to 2.5GHz band. We share the building with
> others, so except for one of them, they are out of our control.
>
> H.
>
> On 3/16/07, Arinto Murdopo <arinto at gmail.com> wrote:
> > Hi all,
> >
> > Is that possible if the experiment in Sandbox affect experiment in Main
> > Grid? Do they exist in separate room so that cannot affect each other?
> >
> > Thank you
> >
> > Arinto
> >
>
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