Hello all, I am trying to implement a multi-relay cooperative network using gnuradio and USRP B200. I cannot figure out how to synchronize the relay transmissions using GNU-Radio (without editing FPGA code or using external clock source).
I created an out of tree module derived from the tags_demo example of uhd but i encounter a problem with the packet encoder. my flow graph is something like USRP source ---> tagging_block ---> DBPSK demod -->packet decoder --> encoder --> mod --> USRP sink.
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