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en:users:documentation:acs [2021/02/21 02:57] Scott Almes removed inexplicable mailto link |
en:users:documentation:acs [2021/03/01 04:28] (current) Nikolas Nyby [Hostapd setup] update link to acs config section |
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- | ===== Total interferece factor ===== | + | ===== Total interference factor ===== |
The above channel interference factor is calculated with no respect to target operational bandwidth. | The above channel interference factor is calculated with no respect to target operational bandwidth. | ||
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To find an ideal channel the above data is combined by taking into account the target operational bandwidth and selected band. E.g. on 2.4GHz channels overlap w/ 20MHz bandwidth, but there is no overlap for 20MHz bandwidth on 5GHz. | To find an ideal channel the above data is combined by taking into account the target operational bandwidth and selected band. E.g. on 2.4GHz channels overlap w/ 20MHz bandwidth, but there is no overlap for 20MHz bandwidth on 5GHz. | ||
- | Each valid and possible channel spec (i.e. channel + width) is taken and its interference factor is computed by summing up intereferences of each channel it overlaps. The one with least total interference is picked up. | + | Each valid and possible channel spec (i.e. channel + width) is taken and its interference factor is computed by summing up interferences of each channel it overlaps. The one with least total interference is picked up. |
Note: This implies base channel interference factor must be non-negative allowing easy summing up. | Note: This implies base channel interference factor must be non-negative allowing easy summing up. | ||
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===== Hostapd setup ===== | ===== Hostapd setup ===== | ||
- | Only the following drivers support the current (2014-08-19) survey based ACS implmenetation in hostapd ([[http://w1.fi/cgit/hostap/tree/hostapd/defconfig#n309|http://w1.fi/cgit/hostap/tree/hostapd/defconfig#n309]]). | + | Only the following drivers support the current (2014-08-19) survey based ACS implmenetation in hostapd ([[https://w1.fi/cgit/hostap/tree/hostapd/defconfig#n329]]). |
* ath5k | * ath5k | ||
* ath9k (The pcie version only) | * ath9k (The pcie version only) |