linux-kernel - Re: [ANN] acs: automatic channel selection utility for 802.11

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Message-ID: <BANLkTiknNdznxtn11NG3Z4EEpuFc08Pzmg@mail.gmail.com>
Date:	Mon, 13 Jun 2011 10:05:34 -0700
From:	"Luis R. Rodriguez" <mcgrof@...il.com>
To:	linux-wireless <linux-wireless@...r.kernel.org>,
	Felix Bitterli <fbitterli@...eros.com>
Cc:	linux-kernel@...r.kernel.org, hostap@...ts.shmoo.com,
	Matt Smith <Matt.Smith@...eros.com>,
	Arun Venkataraman <arun.venkataraman@...eros.com>
Subject: Re: [ANN] acs: automatic channel selection utility for 802.11

On Fri, Jun 10, 2011 at 5:19 PM, Luis R. Rodriguez <mcgrof@...il.com> wrote:

>                    (busy time - tx time)
>    int_factor = ------------------------- *  3^(noise + min_noise)
>                   (active time - tx time)

Switching to a coefficient of 2 instead of 3 for the noise multiplier
to reflect the way power in "far-field" radiation decreases as the
square of distance from the antenna [1]. Thanks to Felix Bitterli for
the hint.

[1] http://en.wikipedia.org/wiki/Near_and_far_field

  Luis
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