Stream ID in virtual source Block

What should i input in the “stream ID” field of Virtual Source block?

That’s totally up to you – any text that you can remember.
You’d put the same value into the Virtual Sink block’s stream ID, so
that they are connected.

Thanks Marcus …

On Wed, Jun 3, 2015 at 3:23 PM, Marcus Müller [email protected]

That’s because you made a loop, and that’s illegal; why do you feed the
output of the OFDM CP back into the carrier allocator?

Best regards,

i made the following Flowgraph :

Virtual Source -----> OFDM Carrier allocator --------> FFT -------> OFDM
Cyclic Prefixer -----> Virtual Sink

When i am executing the flowgraph it says – "runtime error : flowgraph
loops ! ".
What should i do ?

i got it.

On Wed, Jun 3, 2015 at 7:08 PM, Francisco A.
<[email protected]

Hi Monika.

Remember that the Virtual Source’s output is just the input of the
Virtual Sink with the same ID.

It is a convenient way of making a nicer and tidier graph without so
many “wires”.

I use them also as a “signal copier”:

(something X) —> Virtual Sink ID 1

Virtual Source ID 1 ----> one copy of X
-----> another copy of X
------> etc
------> etc

This way I don’t have to remake all the connections when I change X.


2015-06-03 9:18 GMT-03:00 Marcus Müller [email protected]:

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