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Re: [Discuss-gnuradio] Measure the Distance to another 802.11 device
From: |
Florian Adamsky |
Subject: |
Re: [Discuss-gnuradio] Measure the Distance to another 802.11 device |
Date: |
Wed, 07 Jun 2017 21:53:32 +0200 |
User-agent: |
mu4e 0.9.18; emacs 25.2.1 |
Dear Marcus,
On Wednesday, Jun 07 2017, Marcus Müller wrote:
[...]
> If I remember correctly, there's some degree of adjustability in that
> firmware, at least in Atheros chipsets; [1] might be an interesting talk
> for you.
this is indeed a very interesting talk. According to this talk, AR9380
and later have higher resolution of packet timestamping which could be
exploited to measure the distance. I already had a very brief look at
the open-ath9k-htc-firmware, but I looks like I need closer look. Thanks
for this link!
[...]
> Another takeaway from [1] that in usual operation, the hardware doesn't
> even hand over packets that don't make the checksum test – maybe it'd be
> interesting to disable that filtering.
Even in monitor mode? Mh, I have another HackRF and I can check if it is
able to receive the other packets.
Cheers!
--
Dr. Florian Adamsky
http://florian.adamsky.it/