(modified former Question 12/9)
Recent fibre optical transmission technology allows extending fibre networks
to the curb, the building or the home.
Fibre networks can be brought closer to users' premises than hybrid fibre
Fibre technology can provide the higher capacity in the forward and return
channel, which is required for the provision of typical cable television
services, including interactive ones.
Fibre technology provides the fat bandwidth (100 Mbps or more) on its
communication links and is being deployed as the Internet access networks.
Although fibre networks have the potential allowing the transmission of high
quality television signals and several Recommendations or optical access
networks such as G.983 and G.984 series have been developed, further study on
the interworking and interfaces between digital video systems and fibre networks
- Which mechanisms can be used to transport multichannel analogue and/or
digital television signals over fibre networks, in view of the high loss of
optical splitters used for PON (passive optical networks)?
- Which mechanisms can be used to ensure the low composite distortion and
high CNR (carrier-to-noise ratio) that are required for FDM (frequency
division multiplex) transport of mixed analogue and digital television
signals over fibre networks?
- Which mechanism can be used to transport multichannel digital television
signals over fibre networks in term of a high-speed digital communication
- Which mechanism can be used to compensate the jitter arising from
transporting over asynchronous communication links over fibre networks?
- Which mechanism can be used to compensate the packet loss arising from
transporting over best effort communication links over fibre networks?
- Which mechanism can be used to control access to the traffic in term of
traffic management and security?
- Which mechanism or interface can be used to coordinate digital video
systems with optical access and core networks?
- What enhancements to existing Recommendations are required to provide
energy savings directly or indirectly in Information and Communication
Technologies (ICTs) or in other industries? What enhancements to developing
or new Recommendations are required to provide such energy savings?
Tasks include, but are not limited to the preparation of new Recommendation(s)
with regard the above study items as well as maintenance of existing
Recommendations such as J.185 and J.186.
An up-to-date status of work under this Question is contained in the
SG 9 Work Programme.
- G.983 series, G.984 series and other G-series Recommendations addressing
optical fibre networks, systems and interfaces.
- SG 15 on optical network architectures, particularly those related to
PON systems, and optical interfaces.