Re: Missings packets on OFDM system simulation

[JORGE GONZALEZ ORELLANA]

As you can see, it's the basic implementation of OFDM.

My goal it's to measure the BER, but as I mentioned earlier, below certain level or SNR (20dB) 

El jue, 13 jul 2023 a las 8:05, Marcus Müller (<mmueller@gnuradio.org>) escribió:

Hi Jorge,

yes, please share your flowgraph. It's moot even beginning talking about it without
knowing it.

Best regards,
Marcus

On 12.07.23 20:53, JORGE GONZALEZ ORELLANA via GNU Radio, the Free & Open-Source Toolkit
for Software Radio wrote:
> Hello everyone, I have some question related with a OFDM transmission simulation, in
> particular, about losing packets.
>
> I am using the OFDM Transmitter and Receiver blocks to do the transmission (if you need
> more details, I can upload an image of the flowgraph).
>
> The problem that I get is when put some noise (to get some level of SNR), when I have
> about 20dB (or more) of SNR I don't lose any packet, but if I put less than 20dB of SNR,
> almost all packets gets lost, (just 1 or 2 packets are received), all of this happen over
> simulation.
>
> Any suggestions on why this might happen?

BEROFDM-1.png
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