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Re: [Discuss-gnuradio] file sink problems


From: Martin Braun (CEL)
Subject: Re: [Discuss-gnuradio] file sink problems
Date: Tue, 17 Sep 2013 17:57:44 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

On Tue, Sep 17, 2013 at 10:01:36AM +0200, Baier wrote:
>         I dont't have any packet data transmision. I generate 1000 samples 
> and I use
>         OFDM mod(fft 128, ot 100, cp 16) from GRC. It is only streaming.
> 
>     That still uses packets. When you increase the amount of generated data,
>     does that help?
> 
>     MB
> 
> If I generate 10000 samples the source file has 40 kByte and the sink file
> after the ofdmmod und demod has 39,4 kByte.
> If I generate 100000 samples the source file has 400 kByte and the sink file
> after the ofdmmod und demod has only 95,7 kByte.
> I think it could be a buffer problem.
> A. B.

Well yes, but it could also be a problem of packet granularity. I'm not
sure how large the packets in OFDM mod are.

Also, try and and remember answering to the list.

MB

-- 
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)

Dipl.-Ing. Martin Braun
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KIT -- University of the State of Baden-Württemberg and
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