Bago
17-12-2007, 18:25
Some of you may find this of interest...
http://www.ofcom.org.uk/research/cm/icmr07/telecoms.pdf
... I certainly did!
Things I found interesting...
Now I know that in the UK, we only have copper wires in place as an infrastructures, and we are restricted to ADSL technology. It's not comparable to the US where they have called co-axial cable laid down for their Cable infrastructures, and uses a different type of technology for broadband.
Plus the speed of net access for ADSL2, or ADSL+ is worst than the first generation of ADSL technology. Hooow? :huh:
In all of the European countries in our analysis, the large majority of broadband is delivered via DSL technology using legacy copper wire lines into customers’ homes (Figure 5.6). And in all countries, including those outside Europe, the proportion of broadband delivered via The International Communications Market 2007 156 DSL increased between 2001 and 2006 as telephone exchanges were upgraded to enable DSL broadband, and the footprint of broadband availability expanded beyond cabled areas.
In the US, Canada and Japan, the market share of DSL is lower. In the US and Canada, this is predominantly due to the delivery of broadband over co-axial cable which was installed in previous decades to deliver cable television services; in Japan the large-scale recent deployment of fibre to the home (FTTH) has caused the DSL share of broadband connections to fall since 2003.
A characteristic of DSL broadband delivered via copper wires is that the speed of service degrades with distance from the exchange. This is true for first-generation ADSL1, while ADSL2 and ADSL 2+ typically experience even faster degradation rates (a typical ADSL2+ broadband connection might experience a 50% decrease in speed at about 2 km from the exchange and at 3km distance there is little advantage in ADSL2+ over ADSL1).12
http://www.ofcom.org.uk/research/cm/icmr07/telecoms.pdf
... I certainly did!
Things I found interesting...
Now I know that in the UK, we only have copper wires in place as an infrastructures, and we are restricted to ADSL technology. It's not comparable to the US where they have called co-axial cable laid down for their Cable infrastructures, and uses a different type of technology for broadband.
Plus the speed of net access for ADSL2, or ADSL+ is worst than the first generation of ADSL technology. Hooow? :huh:
In all of the European countries in our analysis, the large majority of broadband is delivered via DSL technology using legacy copper wire lines into customers’ homes (Figure 5.6). And in all countries, including those outside Europe, the proportion of broadband delivered via The International Communications Market 2007 156 DSL increased between 2001 and 2006 as telephone exchanges were upgraded to enable DSL broadband, and the footprint of broadband availability expanded beyond cabled areas.
In the US, Canada and Japan, the market share of DSL is lower. In the US and Canada, this is predominantly due to the delivery of broadband over co-axial cable which was installed in previous decades to deliver cable television services; in Japan the large-scale recent deployment of fibre to the home (FTTH) has caused the DSL share of broadband connections to fall since 2003.
A characteristic of DSL broadband delivered via copper wires is that the speed of service degrades with distance from the exchange. This is true for first-generation ADSL1, while ADSL2 and ADSL 2+ typically experience even faster degradation rates (a typical ADSL2+ broadband connection might experience a 50% decrease in speed at about 2 km from the exchange and at 3km distance there is little advantage in ADSL2+ over ADSL1).12