Hi Antonio,
I think this is a revival of an older thread.
I still can't execute your flow graph, because it seems to be built with
an old version of GNU Radio (probably 3.6.X?).
Using that really doesn't make sense for OFDM experimentation, because
the new, much cooler and better-working OFDM
Hello,
I'm doing my College final project about gnuradio companion. I have to
calculate the BER with OFDM using different modulations to the subcarriers.
After that, I have to do a graphic with the BER numbers. The configuration
I use is in the images attached.
Specifically, I have to send an
Hello Jawad,
Today I send the same message that I sent a few days ago because I realized
I did not include GRC code files. Those files are necessary to detect
errors.
I've made the changes you said. As you say, when I assign the Payload
parameter to the number of samples of the block Random
Hello Jawad,
I've made the changes you said. As you say, when I assign the Payload
parameter to the number of samples of the block Random Source without
introducing Delay, I get a BER value equal to 0. But what I need to
introduce a noise source so that when I increase the power noise, also
Hi Antonio,
I tried to open your GRC file. This must have been with a pretty old
version of GNU Radio (which version are you using?).
I strongly recommend getting a newer version of GNU Radio, because
especially the OFDM code has improved a lot.
By the way, a BER of about ~0.5 means that as many
Hello Antonio,
Please take the habit of replying to the list. People might get into the
same problems or someone might have some knowledge to share.
Also, try to provide a flowgraph (.grc file) to make testing easier for the
people helping you out.
That said, I did some testing and it looks
Hello,
I'm doing my College final project about gnuradio companion. Specifically
I have to calculate the BER with OFDM using different modulations to the
subcarriers. After that, I have to do a graphic with the BER numbers. The
configuration I use is in the image attached.
When I'm using GRC to
Hi Antonio,
The problem might be due to delay introduced by the processing blocks.
Your OFDM modulator and demodulator don't work instantaneously, they take
some time to do their processing and forward their outputs to the next
block in line. Therefore, there is a delay between the output of the
