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Can I create a packet relay communication?

Hey, nice guys.


I am going to proceed with packet relay communication using NI-USRP software.
Using the following "Packet - based Digital Link", transmission and reception using two USRPs were successfully achieved.


https://forums.ni.com/t5/Software-Defined-Radio/Packet-based-Digital-Link/ta-p/350966?profile.language=ko


Furthermore, I try to implement packet relay communication such as Sender Node-> Relay Node -> Destination Node using three USPR2921s.

The problem here is that USRP2921 is Half-Duplex, so accurate sink or accurate delay is needed to operate Relay Node. I don't know how to deal with these delays. And I do not know how Relay Node sends the packet transmitted from the Sender to the destination node.

I would appreciate it if you could share the solution or reference data for this.

*****I'm using three USRP2921s and NXG 5.0.