[LINK] Wireless Broadband for Regional Australia
Tom Worthington
tom.worthington at tomw.net.au
Mon Dec 30 10:27:08 AEDT 2013
On 28/12/13 17:41, Richard responded to my posting of 28/12/13:
> ... anywhere genuinely fast connections are available, and people
> subscribe to them like mad?
Good question. Does anyone have statistics for the take-up rate for high
speed broadband in other countries? The take-up rate for the NBN in
Tasmania was reported to be 38.5% after three years:
http://www.abc.net.au/news/2013-08-16/questions-over-nbn-take-up-rate-in-tasmania/4892792
The previous government was not too worried about the NBN take-up rate,
as the copper network was to be switched off, so consumers would not
have much of a choice.
> And look at the trade-offs. The picocell model ...
Yes, there are disadvantages to wireless broadband, but it is being
installed for mobile users anyway. My suggestion was that rather than
install two separate broadband infrastructures, the one infrastructure
could be used for mobile and home users. The one fibre backbone would
have cells attached as well as copper and fibre connections to homes.
To expand on my posting:
>> ... With advanced video compression 4K TV can be carried on existing
>> free-to-air TV spectrum and wireless broadband. ...
The advanced compression I had in mind is the HEVC codec, which is
reported to allow HD TV at 6 Mbps and 4k TV at 12 to 30 Mbps. This could
be carried on a 4G LTE-A network, using the Multicast-broadcast
single-frequency network (MBSFN) option.
See:
1. In "High-efficiency video coding will help bring 4K video to internet
TV" (Network World, 01/25/13), Steven Vaughan-Nichols suggests that the
HEVC codec will allow 4k TV at 20 to 30Mbps:
http://www.networkworld.com/community/blog/high-efficiency-video-coding-will-help-bring-4k-video-internet-tv
2. In "Netflix is bringing 4K streaming to TVs with H.265 and House of
Cards" (GEEK NEWSLETTER, 19 Dec 2013), Russell Holly suggests 12 and 15
Mbps:
http://www.geek.com/news/netflix-is-bringing-4k-streaming-to-tvs-with-h-265-and-house-of-cards-1580160/
3. Multicast-broadcast single-frequency network (MBSFN):
http://en.wikipedia.org/wiki/Multicast-Broadcast_Single_Frequency_Network
>> Home health care doesn't need high bandwidth. ...
A person's vital signs (body temperature, heart rate, blood pressure,
and respiratory rate) would only need about 10 bps to transmit. More
sophisticated monitors require more bandwidth, bit still far short of
broadband, such as such as electrocardiography at 4 kbps:
http://www.researchgate.net/publication/228876616_Performance_analysis_of_the_IEEE_802.15._4_based_ECG_monitoring_network/file/79e4150e8748b7d578.pdf
But the greatest benefit from home health monitoring is likely to come
from checking on the patient's general level of activity and asking them
how they are. Advice to doctors, commissioned by the Department of
Health recommends a minimum of 640 x 480 Video, with a minimum
throughput on the link of 384kbit/s should be available, which far less
than high speed broadband:
http://www.mbsonline.gov.au/internet/mbsonline/publishing.nsf/Content/connectinghealthservices-guidance
>> On-line education doesn't need high speed broadband, it needs trained
>> teachers and some educational content. ...
While students like rich multimedia, this does not necessarily improve
learning. The report "Evaluation of Evidence-Based Practices in Online
Learning: A Meta-Analysis and Review of Online Learning Studies" from
the US Department of Education found that video does not improve online
learning:
http://www.ed.gov/rschstat/eval/tech/evidence-based-practices/finalreport.pdf
>> Australia now has free Internet access in public libraries, which is an
>> achievement. ...
Internet in libraries builds on the library's traditional role providing
access to information and literacy. Universities and TAFEs are turning
their libraries into learning centres, with computers in place of books.
They are keeping the staff to help the students, not only work the
computers but with finding, using and creating information:
http://lib.dr.iastate.edu/cgi/viewcontent.cgi?article=4193&context=etd
The Gungahlin Town Centre Library in Canberra is a good example, where
the one building accommodates the public library, a school library, a
TAFE campus and broadband connected community rooms. This could be
extended to provide support for university students as well:
http://blog.highereducationwhisperer.com/2013/09/university-satellite-campuses-like-co.html
--
Tom Worthington, PO Box 13, Belconnen ACT 2617, Australia
http://www.tomw.net.au
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