ADSL2+, HDTV don’t mix, researcher says
September 19, 2006
Telecom operators intending to launch IPTV and triple play services may find ADSL2+ lacking, according to a new report.
The report, “Fibre in the Last Mile: the business case for FTTP and VDSL,” from telecom, IT and media adviser Analysys, evaluates the realistic deployment options for each of the DSL and fiber-based technologies likely to be used in Western Europe.
According to report co-author Martin Scott, real-world speeds of DSL technologies can be up to 40 percent lower at source than their theoretical maximum. ADSL2+ “does not leave a lot of reliable bandwidth to play with over and above one HDTV stream,” he said. As a result, operators should look to VDSL2 and fiber.
Among the report’s findings are:
VDSL technologies are the most financially sound option in Western European countries, though payback will take at least six years. Large fiber-to-the-premises (FTTP) builds will not earn a return on investment (ROI) for at least 15 years, making state-aided builds the only viable model. Telcos must consider losses from not upgrading copper networks, as well as gains from upgrading them. Cash lost from doing nothing could exceed cumulative negative cash flow from a fiber build after as little as 10 years.
For more information, visit:
comments powered by Disqus.