synchronize transmitted and received frames in order to calculate the ber

[labviewette]

hello dear community

are there ready to use vis (gvis to be more exact) that can be used with the 802.11 framework in order to synchronise the transmitted and received frames in case of streaming video data over the udp port?

[tcap]

Hello,

Can you please provide a little more background on what you want synchronized (RF Front End, UDP Stream, Host to FPGA Communication)?

Are you specifically trying to implement the RX BER?

Regards,

[labviewette]

hello tcap,

i want to measure the bit error rate by comparing the source data from the host before beeing passing to the fpga with the received data after beeing passed from the fpga.

[tcap]

Hello LabVIEWette,

I don't fully understand what you are trying to do and why you need the TX and RX information being streamed to and from the FPGA to be synchronized.  Can you please provide with a little more information.

Regards,

[labviewette]

Pardon tcap if the explanation was vague: 

I am using the 802.11 application framework with the USRP 2953R. I am transmitting both PN Data and streaming video over UDP. I want to calculate the bit error rate by comparing input data from the transmitter with the input data from the receiver. This is pretty easy in the case of PN Data. In the RX-Reception Loop in the "802.11 Host.gvi" i compare the PN packets as output from the "Unbundle Session.gvi" with the Received Data from the "802.11 Receive RX ICP.gvi". I do not need to worry about data frames not beeing aligned due to delays because the PN sequence used as the comparison-reference is always the same in one run. But I am wondering if there are available GVIs that compensate the delay between TX and RX and synchronise them prior to comparing them and calculating the bit error rate. I need this when streaming video over UDP.

I hope my question is clear now.

Thank you for your effort