Re: Sending packets out of schedule?

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Hi Christian

I you may want to look at the iccrg archive for a discussion on the issues with too high packet rate. I posted some very similar questions ~a month ago
http://oakham.cs.ucl.ac.uk/pipermail/iccrg/2010-September/000847.html

Regards
/Ingemar
 

> -----Original Message-----
> From: dccp-bounces@xxxxxxxx [mailto:dccp-bounces@xxxxxxxx] On 
> Behalf Of Christian Hoene
> Sent: den 28 oktober 2010 10:32
> To: dccp@xxxxxxxx
> Subject: Re:  Sending packets out of schedule?
> 
> Hi,
> 
> I forgot one question. DCCP only allows sending rates of 10ms 
> but we need 2ms to support distribute ensemble performances 
> over the Internet, which require an acoustic end-to-end of 
> about 25 ms. Is this a problem?
> 
> With best regards,
> 
>  Christian
> 
> Christian Hoene wrote on 2010-10-28:
> > Hello,
> > 
> > may I ask a simply question? Is it possible to send DCCP packets at 
> > other times than those calculated by the rate control? I 
> mean, is it 
> > possible to call a send socket call with an option saying, 
> send this 
> > packet immediately no matter that the rate control is saying to you?
> > 
> > The role of DCCP would be to calculate the proposed sending 
> rate and 
> > to measure the network round trip time. This data is then 
> used by an 
> > application specific rate control.
> > 
> > The background of my questions is based on the experience, 
> that real- 
> > time packets shall be send immediately, especially if a scenario of 
> > very interactivity is given, and that some codecs cannot 
> change their 
> > sending rate immediately but need some extra time (e.g. one or two 
> > additional frame periods). Thus, a less strict sending 
> schedule would help.
> > 
> > Thanks for any help and comments.
> > 
> > With best regards,
> >  Christian
> > 
> > 
> > ---------------------------------------------------------------
> > Dr.-Ing. Christian Hoene
> > Interactive Communication Systems (ICS), University of 
> Tübingen Sand 
> > 13, 72076 Tübingen, Germany, Phone +49 7071 2970532
> > http://www.net.uni- tuebingen.de/
> 
> 
> 
> 


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