NGN
Multimedia Services
The next
generation telecommunications network (NGN) based on an IP platform
is expected to enable advanced multimedia services such as those in
Table 1.
Multiparty multimedia
conferencing |
Multiple parties
interact using voice, media streaming/video, and/or data.
Customers can converse with each other while displaying visual
information. |
Collaborative
computing |
Computer resources,
documents, applications, and groupware tools can be shared for
interactive work efforts. |
Distance learning |
Users can take
interactive courses from remote locations. These courses can be
offered in either a computer-based training or live virtual
classroom environment. |
Data services |
Real-time
establishment of data connectivity between endpoints, providing
new switched circuit flexibility for customers who had
previously been limited to pe manent circuits. |
Virtual private
network (VPN) |
Data VPN services
expand upon the traditional PSTN VPN services and provide added
security and networking features that allow customers to use a
shared IP network as a closed user group. |
Public network
computing |
Businesses and
consumers utilize generic processing and storage capabilities
provided by the net work for such activities as hosting web
pages; storage, maintenance, and backup of data; andapplications
access. |
Information brokering |
Services that enable
consumers to be matched with providers through advertising,
finding, and providing information. For example, consumers could
receive information based on pre-specified criteria or based on
personal preferences and behavior patterns in addition to direct
subscription. |
E-commerce |
Businesses and
consumers can purchase goods and services electronically over
the network. This could include processing transactions,
verifying payment information, providing security, and possibly
trading for goods and services. Consumer services include Home
Banking and Home Shopping. Business-to- business applications
include supply-chain management and knowledge management
applications. |
Interactive games |
Consumers can meet
online and play video games interactively complete with a set of
interactive communication tools. |
Table 1. NGN
multimedia services
Within this
context, basically three kinds of applications can be distinguished:
-
·
Elastic applications: Generate discrete media traffic(e.g.
file transfers, www)
-
·
Adaptive applications:
Generate continuous media traffic
(e.g. video and audio),
-
·
Critical applications: Generate continuous media traffic
(e.g., teleteaching, teleconferencing, medical telediagnostics,
video/entertainment on demand, and distributed games )
-
·
intolerant applications
(e.g., interactive games, some control applications)
-
·
tolerant applications
(e.g., interactive voice applications).
|