Low Wi-Fi throughput

Antonio Quartulli antonio
Fri Dec 13 09:11:27 PST 2013

Hi Alban,

On 13/12/13 18:06, Alban JEANTHEAU wrote:
> Hi every one,
>   I need to make Wi-Fi connections between my device and I require a
> high throughput. I mainly target IBSS network. For IBSS, I'm using
> wpa_supplicant with USB dongle Asus N53 (RT3572, here is my
> configuration file:
> ap_scan=2
> network={
>     scan_ssid=1
>     ssid="MySsid"
>     frequency=5200
>     mode=1
>     key_mgmt=WPA-NONE

why using WPA-NONE when you can use RSN ? WPA-NONE is not really WPA..

>     proto=WPA
>     psk="MyKey"
>     pairwise=NONE
>     group=CCMP

How can you use CCMP with WPA-NONE?

>     htmode=HT40-

where have you seen this parameter? This is not supported by
wpa_supplicant as it is nl80211 specific....and we didn't find a
reasonable way to push into the configuration engine any driver-specific

Are you using openwrt by any chance?

> }
> The maximum throughput I can reach is about 22Mbps (iperf TCP between 2
> devices 2 meters away).

My guess is that the IBSS connection is not exploiting the HT
capabilities. Please, look for a file called ht_capa in /sys/ (you
should have one of this file for each peer you have) and check its content.


Antonio Quartulli

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