Hi, This question isn't necessarily about GNU Radio but about SDR in general.
I am studying spectrum sensing algorithms and I was reading about simultaneous sensing and data transmission or SSDT for out-band sensing. It means that a radio is capable of transmitting data in one channel and sensing at another different channel. However, using a USRP2, I can only select one center frequency at a time. Considering I am applying sensing to signals which have a bandwidth of 6MHz, in order to transmit/receive data in one channel and sense other (different) channels at the same time I need crazy sampling rates that GNU Radio can't support. A 25 MS/s isn't enough to make a scan for all the ISM Band as I wanted. So there are several answers for my problem: 1. SSDT implies additional hardware making a single USRP2 simply not enough 2. There is a way to tune different channel frequencies at the same time without any need to increase the sampling rate or use more than one USRP2 3. I don't understand SSDT and its limitations 4. None of the above Any help, suggestion, feedback would be nice Francisco -- View this message in context: http://old.nabble.com/SSDT-question-tp33763477p33763477.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
