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From: Johannes Berg <johannes@sipsolutions.net>
To: Ramon Fontes <ramonreisfontes@gmail.com>, linux-wireless@vger.kernel.org
Subject: Re: mac80211_hwsim: multiple antennas
Date: Wed, 21 Nov 2018 10:11:13 +0100	[thread overview]
Message-ID: <a88ba8b1e23b5e461f492f050cfd67c0222cf662.camel@sipsolutions.net> (raw)
In-Reply-To: <CAK8U23bW5ov=FfD0xBnio7FwS9NTjoyewfHWZhHAmZNPsA16Jw@mail.gmail.com> (sfid-20181120_203341_461821_AD8C0481)

On Tue, 2018-11-20 at 16:33 -0300, Ramon Fontes wrote:
> Would be possible to simulate (or even add support to) multiple
> antennas? I was trying to extend wmediumd to 802.11n according the
> rates provided by http://mcsindex.com/, but the maximum rate I get is
> ~33Mbps, even if I set the MCS index to 15. Given the result, I
> thought that it could be related to the number of antennas. Is my
> assumption correct?

I'm not sure what you mean by "the maximum rate I get is ~33Mbps".

Are you trying to actually _measure_ it? Then, on a decent platform, you
should probably get many *gigabits*.

Or are you trying to look at the rate in "iw station dump" or in
radiotap? Then you should see higher rates since hwsim is configured to
pretend to have 4 spatial streams (IIRC)

johannes


  reply	other threads:[~2018-11-21  9:11 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-20 19:33 mac80211_hwsim: multiple antennas Ramon Fontes
2018-11-21  9:11 ` Johannes Berg [this message]
2018-11-21 12:26   ` Ramon Fontes
2018-11-21 12:30     ` Johannes Berg
2018-11-21 12:47       ` Ramon Fontes
2018-11-21 12:48         ` Johannes Berg
2018-11-21 13:09           ` Ramon Fontes
2018-11-22 12:18             ` Ramon Fontes
2018-11-23 14:18               ` Benjamin Beichler
2018-11-23 19:12               ` Johannes Berg
2018-11-23 19:13             ` Johannes Berg
2018-11-23 21:08       ` Bob Copeland

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