On 05/22/2014 11:29 AM, Sara Chérif wrote: > In ofdm transmitter , I want to add 6 subcarriers as a guard band > between symbols , so that each symbol is fft + cp + guard band .. How to > add this guard band ? is there a block which add zeros ? > I think I can make guard band included in CP , I can make cp longer by 6 > then multiplying symbols by a window (multipling fft and actual cp by > ones & multipling last 6 subcarriers by zeros ) . Is there a window or > time domain filter in GNU Radio ?
See http://gnuradio.org/doc/doxygen/page_ofdm.html, you can simply use those subcarriers you want. The default settings (see e.g. the OFDM examples) all have empty sub-carriers for this reason. M > Thanks. > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
