Time Division Multiplexing (TDM) Using USRP 2943s with synchronization

[ahmetemir]

Hello,

I have two 2943R USRP.  One of them is trasmitter another is receiver. I wonder about time division multiplexing on USRPs. How could I implement like this system? On the first time slot Trasmitter USRP's channel 0 will send signal , receiver USRP channel 0 will get the signal, on the second time slot Trasmitter USRP's channel 1 will send signal ,  receiver USRP channel 0 will get the signal again. This process will goes on in order. Therefore in detail, USRP0's Ch0 will send on first time slot USRP1's Ch0 will receive, USRP0's Ch1 will send , USRP1's Ch0 will receive again after that on third time  slot USRP0's Ch0 will send  signal. This process will contiue until I  stop vi's. On the receiver part signals will be showed, and recevier will know that signal where comes from USRP0 Ch0 or USRP0 Ch1.   Syncronization example is present on NI Labview 2014 USRP examples about PPS trig. But  I couldn't come across example vi or document about TDM with synchronization .  Would you give me advices? How could I overcome of this problem?

Best Regards...

[ahmetemir · Accepted solution]

Hello again,

I have found an example on Ni Community about my research : https://decibel.ni.com/content/docs/DOC-23677

Should I use  this document for my purpose?? Is it useful ?? Could you give me  advices please??

I have not much experience about 2943R. I'm trying to learn.. How could I change this document for my research??

Best regards...

[ahmetemir]

I have two 2943R USRP.  One of them is trasmitter another is receiver. I wonder about time division multiplexing on USRPs. How could I implement like this system? On the first time slot Trasmitter USRP's channel 0 will send signal , receiver USRP channel 0 will get the signal, on the second time slot Trasmitter USRP's channel 1 will send signal ,  receiver USRP channel 0 will get the signal again. This process will goes on in order. So I was trying to adapt  from  https://decibel.ni.com/content/docs/DOC-23677 TDMA-External Ref and PPS.vi  for USRP 2943R. Tx Part and Rx parts are present on attachments. I can send signals But Rx part are not able to fetch signal from IQ Graphics , I can see always zero signal. Could you help me please? Where is my fault on vis???