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Re: [PATCH] ath9k: apply coverage class on slottime too

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On 2012-10-30 1:07 PM, Simon Wunderlich wrote:
> From: Mathias Kretschmer <mathias.kretschmer@xxxxxxxxxxxxxxxxxxx>
> 
> According to 802.11-2007 17.3.8.6 (slot time), the slot time should
> be increased by 3 us * coverage class. The code only increased the
> ack timeout, which is fixed by this patch.
> 
> We have noticed in our long shot scenario that we see less collisions
> with this patch.
At some point I had the slot time increase in the driver, but noticed a
massive throughput degradation on 10-20 km links. Leaving the slot time
alone and changing only the ACK timeout fixed this. What distances did
you test?

- Felix

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