Pranav, What you're doing is definitely feasible, but your question is pretty broad. Do you think you gave a good understanding of how the ofdm stuff works internally?
Maybe you'll get more helpful responses if you ask more specific questions. Cheers, Martin On 12 Sep 2016 1:45 am, "Pranav Padalkar" <pranav.padal...@esk.fraunhofer.de> wrote: > Good morning, > > > Can anyone help me with this? I don't want to use the packet structure as > shown in the OFDM example. But I want to use the carrier_allocator and > other blocks, and later also perform synchronization of the OFDM signal > received. > > > Thanks and regards, > Pranav Padalkar > Fraunhofer-Institut für Eingebettete Systeme und Kommunikationstechnik ESK > > ------------------------------ > *From:* Discuss-gnuradio <discuss-gnuradio-bounces+pranav.padalkar=esk. > fraunhofer...@gnu.org> on behalf of Pranav Padalkar <pranav.padalkar@esk. > fraunhofer.de> > *Sent:* Thursday, September 8, 2016 1:42 PM > *To:* discuss-gnuradio@gnu.org > *Subject:* [Discuss-gnuradio] Full Duplex operation, time synchronization > and self interference cancellation > > > Hello all, > > > I am trying to design a full duplex operation on my USRP3. I have to use > OFDM and a defined TDMA scheme for different OFDM symbols. I also have to > use a preamble, but it has to be sent once every TDMA frame. I have > designed a block which takes care of my TDMA and preamble implementation. > Basically, I cannot use packet structure (as given in the OFDM examples). > On the transmitter side I am using OFDM carrier allocator, IFFT and > OFDM cyclic prefixer(CP). > > > Since, it has to be full duplex system, on the receiver side I want to > perform the synchronization of my received signal with the transmitted > signal, and then after removing CP and performing FFT, I have to subtract > my received signal from the transmitted signal. I tried to > understand the corr_est and corr_sync blocks by going through their > examples. But I am not able to understand how can I get the value of offset > (after synchronization), so that using that offset value I can shift my TX > signal and subtract the RX signal. > > > I request if some one can point me in the right direction. > > > Thanks and Regards, > Pranav Padalkar > Fraunhofer-Institut für Eingebettete Systeme und Kommunikationstechnik ESK > > _______________________________________________ > Discuss-gnuradio mailing list > Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > >
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