Thank you for your reply. That is not the point! Because the BER should decrease by increasing the SNR value for any modulation scheme, but it doesn't happen (even by omitting the CRC).
Regards, Farhan On Sun, Oct 4, 2020 at 4:27 PM Tim Huggins <[email protected]> wrote: > The OFDM simulations as written in the examples contain CRCs. I’ve > tinkered with the OFDM examples a bit lately and while I may be completely > mistaken I. believe the examples as written will only pass data that passes > CRC so you may not actually ever see but errors. > > Tim > > On Oct 3, 2020, at 9:57 AM, farhan pishe <[email protected]> wrote: > > > Barry, thank you so much for your time, but unfortunately, it wasn't > helpful for me and still, I am seeking a way to plot the BER vs SNR. I > don't know what is wrong with GNU Radio! Even it doesn't have complete > documentation so that I can understand how to do things like this. I hope > that someone guides me in a clear way. I want to plot a BER vs SNR for the > OFDM simulation which already exists as one of the examples of GNU Radio, > but it gives me constant line. > > On Tue, Sep 29, 2020 at 3:50 PM Barry Duggan <[email protected]> wrote: > >> Farhan, >> >> I don't know much about BER curves, but this example may help you some: >> >> https://github.com/gnuradio/gnuradio/blob/master/gr-fec/examples/ber_curve_gen.grc >> >> Also search the archives of this newsletter. IIRC, there is a discussion >> about the bus inputs. >> >> Remember to CC discuss-gnuradio in your reply. I forgot on the first >> time for this! >> >> --- >> Barry Duggan KV4FV >> https://github.com/duggabe >> >> On Tue, 29 Sep 2020 00:00:51 +0330, farhan pishe wrote: >> >> Hello, >> >> I am trying to plot the BER vs Es/N0 using QT Bercurve Sink which has 16 >> inputs. But the result is always a constant line and I don't know the >> reason and it is blowing my mind. Also, I don't know whether there is an >> alternative way to plot BER vs SNR. I would really appreciate it if >> anyone could help me in this regard. I just want to plot a simple bit >> error rate curve. >> >> Regards, >> Farhan >> >
