On Tue, Jul 01, 2008 at 04:54:22PM +0200, matteo zunino wrote: > > On Tue, Jul 01, 2008 at 11:37:22AM +0200, matteo zunino wrote: > > > > > > Hi, > > > > > > i've a question about these two functions. My aim is to modify these > > > benchmarks in order to create a trasmission system that can choose > > > to put on a single carrier a BPSK or a QPSK modulation. My problem > > > is this one, how can i comunicate to the receiver what carriers are > > > BPSk adn what QPSK? > > > > > > Thanks a lot > > > > This is typically done by sending some kind of 'map' at the low rate > > at the beginning of packet. Take a look at WiMAX to see how > > complicated this can get ;) > > > > Eric
> I've seen it ;) but i've problem too even if i konw what carriers > are BPSK and what are QPSK. I've studied how to modify ofdm.py in > order to transmitt for example the first 10 signals with BPSK > modulation and tre other with QPSK, but when i want to demodulate, i > don't know which point of gr_ofdm_frame_sink.cc i must modify to > demodulate correctly. Do you think my project is possible actually > in gnuradio OFDM? Sure it's possible. You'll have to do some work. Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
