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Message-ID: <49bf44f10803261952u517d87ecv4052dfa8175df3dd@mail.gmail.com>
Date: Wed, 26 Mar 2008 19:52:20 -0700
From: Grant <emailgrant@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Wireless: Limit rate to strengthen connection?
In-Reply-To: <49bf44f10803261944hb0acbd9q9eff31ef150f97cd@mail.gmail.com>
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> > > > > I'm trying to strengthen a wireless connection that spans about 150
> > > > > feet and has to go through about 5 walls. I bought two of these:
> > > > >
> > > > > http://www.newegg.com/Product/Product.aspx?Item=N82E16833164110
> > > > >
> > > > > for either end of the connection, but I'm having trouble making it
> > > > > work well. I've noticed the connection will be perfect for a short
> > > > > time, but then disappear. When watching iwconfig during this process,
> > > > > it looks like the connection is good when on a low rate, but when it
> > > > > goes to 54 Mbps it falls apart.
> > > > >
> > > > > Should limiting the rate solve this problem? If so, how can I do
> > > > > that? I'm using hostapd on the AP and wpa_supplicant on the client.
> > > > >
> > > > > - Grant
> > > >
> > > > Grant,
> > > >
> > > > Yes, lowering the rate to a "slower" speed will help greatly. The lower
> > > > rates use less compression and modulation... less complex wave forms
> > > > better connects over long hauls.
> > > >
> > > > The antennas look very good, but what's driving them? I use and whole
> > > > heartedly endorse SENAO products and have had very good luck with these
> > > > models: ECB-3220 (400 mw) or 2611CB3 PLUS (200 mw) at:
> > > > http://www.wlansolution.com. Either unit with the high gain antennas you
> > > > have, will penetrate what you stated and probably go pretty high on the
> > > > speed scale doing it too.
> > >
> > > I'm using a Netgear PCI adapter on the AP and an Edimax USB adapter on
> > > the client. Do you know how I can limit the rate? Should it be done
> > > on the Gentoo AP or the client?
> > >
> > > - Grant
> >
> > I use wireless-tools from portage. In it is iwconfig. A simple man iwconfig
> > will show you what you need. Other thing you could do is configure the
> > Wireless AP for a fixed rate... works for me.
>
> I found this:
>
> rate_wlan0=( "5.5M" )
>
> which isn't documented in net.wireless, but it doesn't seem to have
> any affect. I've tried it on the router and the client which uses
> wpa_supplicant. I still see the rate on the client fluctuate all the
> way up to 54 Mb/s in the output from iwconfig. The router's rate is
> always reported as 0 kb/s.
>
> - Grant
It appears 'iwconfig wlan0 rate 11M' works (at least as far as the
output from iwconfig is concerned) but how can I set /etc/conf.d/net
to always use this rate?
- Grant
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