[Sis-ipo] Fwd: IP over DVB-S2

Adrian J. Hooke adrian.j.hooke at jpl.nasa.gov
Tue Jun 21 09:57:37 EDT 2005


>Date: Tue, 21 Jun 2005 10:05:25 +0200
>From: Jérôme Lacan <jerome.lacan at ensica.fr>
>Subject: IP over DVB-S2
>Sender: owner-ipdvb at erg.abdn.ac.uk
>To: ipdvb at erg.abdn.ac.uk
>
>Dear all,
>
>With our colleagues from Alcatel-Space, we are working on the mapping of IP
>over DVB-S2.
>
>Recall that DVB-S2 is the "second generation" DVB system for broadband
>satellite service. It will probably replace DVB-S in the next few years.
>You can find the specifications in ETSI document - EN 302 307.
>
>One of the main business targets of DVB-S2 is IP packet transmission. The
>mapping/encapsulation of IP over this system remains an open research issue.
>Actually, DVB-S2 proposes 2 modes to transport the data. The first one,
>Transport Stream-TS, is designed to transport MPEG2-TS packets whereas the
>second one, Generic Stream-GS, is designed to transport continuous streams
>(which can be compound of variable size packets). Regardless of the chosen
>mode, the resulting data are then mapped on Data Fields (of length varying
>from 16008 to 58192 bits) to be encoded by the FEC (LDPC + BCH).
>
>Several options can be considered for this mapping. We think that the ipdvb
>group is a good place to start a discussion on this subject.
>If you are interested on this subject, could you please manifest your
>interest?
>
>best regards,
>
>Jerome Lacan
>ENSICA/TeSA/LAAS-CNRS
>Toulouse, France






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