2011-07-30 12:13:27

by Beat Meier

Subject: What about long distance links in 5.8GHz with ath5k?

Hello

I try to use the new ath5k drivers instead of madwifi with long distance
links (8km-20km) at 5.8GHz
I have not found how to configure the distance settings link in madwifi
and I have really bad throughout
with ath5k driver as client using wpa_supplicant.

Client: Alix board with voyage-0.7.5 (wpa_supplicant 0.7.3), Radio
WL54AGP23 (168C:001B)
Server: wrap board with voyage-0.5.0 (madwifi-0.9.4 / hostapd 0.5.5),
Radio WL54AGP23(168C:001B)

Output of the 8km link tests:
The rate is set fix to 24M on both sites for iperf tests

Signal on sta (ath5k driver): -60dbm iperf server running on sta:
9Mbps
Signal on ap (madwifi driver): -64dbm (-65dbm noise -96) iperf server
running on ap: 400kbps-1.2Mbps

Signal on sta (madwifi driver): -51dbm (-42dbm noise -85) iperf server
running on sta: 12.5Mbps
Signal on ap (madwifi driver): -53dbm (-54dbm noise -96) iperf server
running on ap: 10.3Mbps

If I use ath5k on server with hostapd i.e. voyage-0.7.5 the client does
connect and disconnect there
is no link established...

Any hints/solutions/experiences?

Greetings

Beat

2011-07-30 18:46:55

by Luis R. Rodriguez

Subject: Re: What about long distance links in 5.8GHz with ath5k?

On Sat, Jul 30, 2011 at 5:03 AM, Beat Meier
<[email protected]> wrote:
> Hello
>
> I try to use the new ath5k drivers instead of madwifi with long distance
> links (8km-20km) at 5.8GHz
> I have not found how to configure the distance settings link in madwifi and
> I have really bad throughout
> with ath5k driver as client using wpa_supplicant.
>
> Client: Alix board with voyage-0.7.5 (wpa_supplicant 0.7.3), Radio WL54AGP23
> (168C:001B)
> Server: wrap board with voyage-0.5.0 (madwifi-0.9.4 / hostapd 0.5.5), Radio
> WL54AGP23(168C:001B)
>
> Output of the 8km link tests:
> The rate is set fix to 24M on both sites for iperf tests
>
> Signal on sta (ath5k driver): -60dbm       iperf server running on sta:
> 9Mbps
> Signal on ap (madwifi driver): -64dbm   (-65dbm noise -96)  iperf server
> running on ap: 400kbps-1.2Mbps
>
> Signal on sta (madwifi driver): -51dbm (-42dbm noise -85)   iperf server
> running on sta: 12.5Mbps
> Signal on ap (madwifi driver): -53dbm (-54dbm noise -96)   iperf server
> running on ap: 10.3Mbps
>
> If I use ath5k on server with hostapd i.e. voyage-0.7.5 the client does
> connect and disconnect there
> is no link established...
>
> Any hints/solutions/experiences?

Have you tried

iw phy <phyname> set distance <distance>

Luis

2011-08-01 11:32:42

by Beat Meier

Subject: Re: What about long distance links in 5.8GHz with ath5k?

On 07/30/2011 03:46 PM, Luis R. Rodriguez wrote:
> iw phy<phyname> set distance<distance>

I don't have this option in my version iw 0.9.19 ...
I have now seen that this version is pretty old and will compile and
install newest version ...
Thanks for the hint!!

Beat