-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Naveen,
no need to repeat that message just a day later, as long as you don't add new information. However, since I can't find the example you referring to just now, I'd guess that since for BER measurement you need to know the input bits, data is not generated by a random source but by a vector source. A vector sources just stores a vector of data and outputs it. The attached flowgraph does neither compare input to output nor does it count errors, so that's something you might want to address first. Then: using the error rate block seems to make sense to me. Please detail on where you get the item size mismatch (the blocks and the sizes), most probably it's easier to help you there, instead of helping you build a BER measurement system from scratch. Greetings, Marcus On 22.01.2014 07:49, Naveen Gupta wrote: > ---------- Forwarded message ---------- From: Naveen Gupta > <naveen.e...@gmail.com> Date: Tue, Jan 21, 2014 at 1:30 PM > Subject: ber vs Eb/No for ofdm system To: discuss-gnuradio > <discuss-gnuradio@gnu.org> > > > I need to find ber vs Eb/No plot for different channels for an OFDM > system. I have created a simple OFDM transceiver system in grc. I > tried error rate block with gui number sink but getting error of > source & sink size matching. I have gone through 1 examples from > gnuradio.org which tells to use vector source with loop to produce > ber plot but didn't understand much. Someone please go through grc > file which I have attached & tell me what kind of changes I need to > get BER. > > > > _______________________________________________ Discuss-gnuradio > mailing list Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJS336KAAoJEAFxB7BbsDrLTSoH/Rz0L6zkm7YXXlDHZQhQb34i Ms6Tie2HnhcSU+rQd1TNRv/cik0u9JrUvKvgUQ1BcutUINYN4VtijqCBVjUl6fxH TyfLnHfvhluQKFVPgTVafDndalkMeHJqp7O9rjwixFc9njLp+En17N7hAhykLDjI qvyU0xa4CaRTxrBgSmFKJq1caxuvmddCm4URY3+TmR2O4KBDNWrBGSQCbsP8LpF7 FSfSdWFEyc/EvrD3psMfvoR/VV+dsQ+k2N8V57V0IHMMsgW0TmLy5E5ENeHFC2Ee Wjt/YI6DreGwg8FFMYs1dCNnCL0GQ3CkUNtA7pk9mlF9LsE5nj1fJOv0joSX7fE= =Y7Iq -----END PGP SIGNATURE----- _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
