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Re: [Discuss-gnuradio] Serial to parallel conversion

From: CEL
Subject: Re: [Discuss-gnuradio] Serial to parallel conversion
Date: Wed, 12 Jun 2019 16:43:43 +0000

You want a vector to stream (not to "stream*s*") block.

The reality is that what OFDM block diagrams typically show as
"parallel to serial" block is usually not actually there in software or
hardware architecture. Authors just put these in there to say "hey,
look, we consider these consecutive data symbols as entries in a vector
now". I really don't know why the serial-to-parallel symbol stuck –
maybe because in hardware, smallish FFTs are often implemented in a
fully parallel fashion. 

Really, think of that block just as a "we hack our consecutive sample
stream into vectors of fixed length".

Best regards,

On Wed, 2019-06-12 at 15:00 +0200, Sneha vasan wrote:
> Hi Everyone,
>  I am currently trying to transmit and receive random signal using ofdm 
> modulation.
> So I generated the transmit signal using the MATLAB. Transmit this signal to 
> USRP and receive it.  So in order to demodulate the signal using ofdm scheme, 
> Firstly I am trying to convert this signal from serial to parallel 
> conversion. So in order to do that I am thinking to use vector to streams 
> block. Any suggestion on this? and also as the signal from the usrp is in 
> complex float , how do I convert it into the complex in order to connect the 
> vector to streams tag. 
> Here I am trying to convert the vector into 4 streams and each stream of 
> length 16.
> Regards,
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

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