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Re: [Discuss-gnuradio] Packet data transmission using header/payload dem


From: Martin Braun
Subject: Re: [Discuss-gnuradio] Packet data transmission using header/payload demux
Date: Fri, 9 Dec 2016 10:49:46 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1

You're not providing a trigger; the header/payload demux needs to know
where the header starts. A small change will make this work:

https://imgur.com/a/y6Kdt

Cheers,
M

On 12/08/2016 01:32 PM, Damindra Bandara wrote:
> Hi,
> 
> I am trying to generate a flow graph that transmits a file as packetized
> data and receive it back to a file. I created the following flow graph.
> It uses Packet header generator and tagged stream mux to add the header
> and header and header/payload demux to extract the data from the frame. 
> 
> As suggested by Tom, I followed an approach similar to OFDM packet
> transmission and reception. I also used the following link to remove the
> OFDM functionality and use only the packet transmission functionality.
> 
> http://comments.gmane.org/gmane.comp.gnu.radio.general/49171
> 
> However, when I run the flowgraph, I do not get any tags after the
> header/payload demux and I do not receive the file correctly. I
> appreciate if someone could look into my flowgraph and give me some
> guideline to get this functionality working.
> 
> Thank you,
> Damindra
> 
> -- 
> Damindra Savithri Bandara,
> Ph.D. in Information Technology (Candidate)
> George Mason University,
> Fairfax,
> Virginia
> 
> 
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