[Discuss-gnuradio] How to synchronize two transmitters

[yend B.]

I was wondering if there is a way to syncrhonize two transmitters running on two machines.

Both transmitter use OFDM. I could use a shared reference clock, but the problem is that

I don't know how exactly I can send packets SIMULTANEOUSLY from both transmitters.

I want to measure co-channel interference and study multiuser detection alogorithms.

 

Regards!