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IP Communications and Services for NGN
book

IP Communications and Services for NGN

by Johnson I Agbinya
December 2009
Intermediate to advanced content levelIntermediate to advanced
411 pages
12h 24m
English
Auerbach Publications
Content preview from IP Communications and Services for NGN
348 IP Communications and Services for NGN
Core Network Requirements
From Figure 19.3, the input to the core network is a series of compressed video as
IP packets. is is wherefrom IPTV derives its name. e TV frames are prepared
as IP packets and transmitted through the core IP network. Where an IP core net-
work is not available, a media gateway is used to re-cast the IP packets into the form
that the core network is able to carry (for example, into ATM cells and carried by
an ATM-based network). At the receiving end, they are re-cast back into IP packets
and reconstructed for viewing.
e high-speed core Internetwork functions as a multicast network so it is able
to serve many customers simultaneously, providing picture quality with gua ...
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Publisher Resources

ISBN: 9781420070910