Hello Bastian,
Yes I used PCIe(X300). I measured two things. One "rtt" with
latency_test.cpp which gave 80 microsecs
and another receiver latency where I set the GPIO HIGH as soon as the
receive power exceeds a threshold. I made a custom C++ script for this. This
gave 52 microsecs.
Regards
Su
Hi,
On 04/03/2017 09:44 PM, sumitstop wrote:
> Hello Bastian,
>
> How much the delay between sensing the channel and sending the ACK should
> be. With X300 I was able to achieve a minm of 80 microsecs round trip time.
> Not less than that.
Interesting. What exactly did you measure? I assume yo
Hello Bastian,
How much the delay between sensing the channel and sending the ACK should
be. With X300 I was able to achieve a minm of 80 microsecs round trip time.
Not less than that.
I am now sure that it cant be done on GPP, just wondering how fast it should
be. If you can direct me to some
>From a CPU and thus, SDR _software_ throughput, point of view, the E310
certainly isn't more powerful than a modern laptop + B2xx; latency might
be a bit shorter, though, but in the end, you're making the most
important point here:
If you need to eradicate the nondeterministic behaviour of genera
An interesting question is whether more powerful SDR (e.g. E310) should
manage to do that (DATA+SIFS+ACK).
RFNoC may facilitate the FPGA design...
2017-03-29 17:19 GMT-03:00 Bastian Bloessl :
> Hi,
>
> On 03/29/2017 01:11 PM, sumitstop wrote:
> > Hi,
> >
> > With gr-ieee 802.11, I know that SIFS
Hi,
On 03/29/2017 01:11 PM, sumitstop wrote:
> Hi,
>
> With gr-ieee 802.11, I know that SIFS cannot be respected becz of USB delays
> (B210), but what we can also try is that : sending ACK packet before all the
> layer-2 retries are exhausted ! Instead of sending ACK withing 10 microsecs.
>
>
Hi,
With gr-ieee 802.11, I know that SIFS cannot be respected becz of USB delays
(B210), but what we can also try is that : sending ACK packet before all the
layer-2 retries are exhausted ! Instead of sending ACK withing 10 microsecs.
In this way, the throughput will be down for sure but the de
