Re: [Discuss-gnuradio] How Can I support full-duplex using SBX board when running tunnel.py over OFDM?

[Josh Blum]

> 
>> Some recommendations:
>>
>> 1) Use different frequencies for each communication channel.
>>
> 
> I will firstly try this option.
> 
> 
>>
>> 2) Or mute the RX stream when transmitting to avoid decoding leakage.
>>
> 
> Could you give some indications on how to mute the RX when it is
> transmitting? Is it related to switching of the RX and TX of SBX? And do
> you think it is fast enough if I do it in host based software?
> 
> 

The simplest approach would be to call mute on a gr_mute block while you
are entering the send() function for a packet.

A more complicated approach would be to schedule the transmits with
timestamps so you know exactly what recv samples to throw out.

Thought of a few more:

3) The access code is already configurable parameter. Simply use a
different access code for each communication channel.

4) It would also be possible to put some kind of other identifiable
information into the packets. Use this information to discard unwanted
packets.

-josh