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From: | Sara Chérif |
Subject: | Re: [Discuss-gnuradio] guard band |
Date: | Sun, 22 Jun 2014 18:19:26 +0300 |
See http://gnuradio.org/doc/doxygen/page_ofdm.html, you can simply useOn 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 ?
those subcarriers you want. The default settings (see e.g. the OFDM
examples) all have empty sub-carriers for this reason.
M
> Thanks.
>
>
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