[LINK] IIA "National Broadband Targets 2010" report
stephen at melbpc.org.au
stephen at melbpc.org.au
Wed Aug 2 22:20:25 AEST 2006
This week the Internet Industry Association released their, 'National
Broadband Targets for 2010' report ..
<http://www.iia.net.au/files/IIA_Broadband_Targets_2010_%20
(for_release).pdf>
Broadband Usage in 2010
(July 31 2006. Snipped)
It is difficult to predict with any degree of certainty the exact nature
and extent of activities that Australians will be requiring by 2010.
Historically, we have seen new developments emerge quickly to assume
almost mainstream status in short periods of time. We expect the next
four years to be no different.
As we have observed, a range of services will become feasible as capacity
increases, and these in turn will drive further uptake.
We note the upsurge in blogging in recent years will translate to
activities like video blogging which will place higher demands on
networks, particularly upstream. Phenomena like YouTube indicate a high
propensity for users to embrace new functionality as the communications
gap between individuals continues to close. So too social networking,
with more sites like MySpace and Second Life set to emerge, becoming more
sophisticated, and more demanding of bandwidth.
By far the greatest demand on bandwidth will come from video, with HDTV
being the most intensive. Downloads of video and streamed IPTV are
expected to assume greater public usage as the interactivity and
convenience they provide becomes more apparent.
Some commentators consider that once HDTV services are available, the
appetite from users will soon soak up what we would consider today to be
massive amounts of bandwidth. Clearly, if the following assertion proves
correct, then 2010 will see demand for ultra high capacities (in todays
terms) becoming the norm:
"Consumers are demanding six channels, two of which must be of HDTV
quality, in IPTV (Internet Protocol-television) applications. That demand
translates to a minimum of 50-Mbps broadband services."
While VoIP can run on much lower speeds, the cumulative effect on
networks will continue. The OECD points out that while the average ADSL
upload speed across member economies of 700 kbit/s can support very high
quality audio for voice calls, if a user is making concurrent use of
other services the voice quality could deteriorate or the call could drop
out all together. The prospect of video-VoIP, particularly high
resolution, will place further strain on existing services.
Business use of video conferencing is expected to increase as rising fuel
prices, business continuity planning for possible avian flu pandemic or
terrorist attack, environmental concerns and the provision of greater
work/life balance for employees, begin to build pressure for workforce
decentralisation. The Australian Telework Advisory Committee in its final
report also recognised the productivity benefits that teleworking can
deliver to business. These factors will see businesses require more
broadband capacity and performance.
Overall, we anticipate that users will demand a mix of simultaneous or
near simultaneous services to be accessible. As a guide, we would expect
access services to be able to support concurrent uses of some or all of
the following VoIP, gaming, multichannel streaming and video on demand
(including HDTV quality), music, legitimate P2P file sharing,
and browsing ... <snip>
While it is our intention to remain technologically neutral in the way
Australia should meet our proposed broadband targets, we observe as:
* DOCSIS 3 on HFC is capable of delivering 100Mbit/s, therefore cable has
considerable potential to carry greater capacity
* ADSL2+ will deliver 24Mbit/s to customers within 3km of local
exchanges; beyond that, the performance degrades to ADSL levels
* WiMax will deliver actual performance up to 2 Mbit/s with current
theoretical maximum of 70 Mbit/s, range can be limited depending on
transmission power and density of base stations
* Current 3G will deliver 384 kbit/s in mobile and up to 2 Mbit/s in
stationary mode; HSDPA as an advanced 3G variant, could deliver up to
14Mbit/s
* WiFi will allow up to 54 Mbit/s for up to 30 metres range, but 802.11n
is claimed to offer up to ten times that speed over 50 metres
* Satellite will deliver up to 1.5 Mbit/s, but latency is an issue and a
backchannel is required unless a 2-way solution is installed
* H.264 compression codec can deliver video content at approximately half
the bitrate of MPEG2, and as part of the new MPEG4 standards, is designed
to deliver video to a range of devices from mobiles through to HDTV
screens
* Optical fibre, depending on network architecture can comfortably
deliver 100Mbit/s downstream and symmetrical services; deployed as FTTN
it will rely on complementary technologies such as ADSL2+, VDSL or
wireless to deliver to customers; this will forms a bottleneck on
performance limited by distance and other factors inherent in their
design ...
--
Cheers all,
Stephen Loosley
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