You don't need to measure it. You need to ask yourself *why* a
constellation with many points might not work well with a low SNR.
Then you have your answer.
On 11.11.20 14:03, p...@koalatech.pt wrote:
> I don know how can I measure the SNR with QAM modulation. There is only
> a MPSK SNR probe.
>
I don know how can I measure the SNR with QAM modulation. There is
only a MPSK SNR probe.
Can you tell me how to measure SNR with MQAM?
Thanks for your help,
Pedro Viegas
Citando Marcus Müller :
Hi. this is a typical question like I'd ask it when talking a student
through a test for a
Hi. this is a typical question like I'd ask it when talking a student
through a test for a digital comms computer lab. So here's a hint:
"Constellations with very many points" don't always work. It has to do
with SNR. Can you explain what the problem is with low SNR?
Best regards,
Marcus
On
Hi, I'm trying to make an OFDM transmission of a png file (9.3 kB)
with 256QAM with the gnuradio
example of OFDM transmitter / receiver. The USRP I'm using is the
ettus n210 with the cbx daughter board. With the QPSK and 16QAM
modulations it works, but with 64QAM or 256QAM I can´t receive
