I am trying to implement a cognitive radio system for dynamic spectrum
access. I am trying to implement it in GNU radio. But the problem is
that i have only one USRP at the moment with Basic RX and TX
daughterboards. The setup consists of Station A transmitting to Station
B.
In order to be able to use the licensed spectrum, the transmitter must
know which channels are free in the vicinity. Thus it has to do a
parallel detection of spectrum as well---receiver mode.
The
Transmitter first senses the spectrum for some time say 10ms and then
transmits on the free frequency for say 90 ms before sensing the
spectrum again and so on.
Thus the following questions arise: 1. Can the Station B be implemented on the same USRP when the Station A is only transmitting[not sensing(recieving)]? 2. What effects would this have on the Data Rates and any problem with the USB interface?
Is there any built in example within gnuradio with which i can
test the simultaneous transmission and reception from the BasicTX to
the BasicRX respectively on the same usrp?