ARCEP (L’Autorité de régulation des communications électroniques et des postes), France’s telecommunications and postal services regulator, has published its latest market survey covering the period up to the end of the first quarter 2011.
According to the survey, at the end of the period there were 20.25 million DSL subscribers in France, with 56% of those (11.4 million) also subscribing to TV-over-DSL.
ADSL subscribers (thousands):
1Q2010 2Q2010 3Q2010 4Q2010 1Q2011
------ ------ ------ ------ ------
Total 18,909 19,147 19,476 19,858 20,254
Number with TV-over-ADSL 9,306 9,705 10,122 10,684 11,369
%age with TV-over-ADSL 49.2% 50.7% 52.0% 53.8% 56.1%
Thursday, June 30th, 2011
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Jun 8, 2011
Ikanos bows NodeScale Vectoring to accelerate DSL
Ikanos Communications introduced a new technique that accelerates DSL significantly through the use of a method that virtually eliminates crosstalk in wires across an entire node.
The technique, which Ikanos calls NodeScale Vectoring, is based on the G.993.5 ITU standard for limiting crosstalk. Ikanos' variation will work across an entire node (approximately 384 ports), the company says, in contrast to other implementations that work across only a single line card (48 ports).
Using the technique, DSL throughputs could be improved to 100 Mbps – sufficient, the company believes, to delay the need to drive fiber to the home. It will certainly be less costly than FTTH, the company said.
The technology would not help DSL become anywhere near symmetrical, but it may be able to support upstream rates of anywhere between 40 to perhaps 60 Mbps.
The technology is currently proven in labs. Service providers are now evaluating the technology, and commercialization would follow those evaluations.
One of the challenges in deploying very-high-speed Internet access over existing infrastructure is the degradation that occurs as a result of crosstalk between coincident copper wire pairs. Each wire can often and intermittently interfere with neighboring wires, thereby introducing noise, limiting line quality and reducing VDSL performance. Other impediments, including AM radio signals, power lines, lightning and other atmospheric elements, inject even more noise into the copper network.
Ikanos' NodeScale Vectoring technology analyzes the crosstalk and interference environment in real time and creates a set of compensation signals that effectively eliminates both.
In fact, NodeScale Vectoring cancels noise across an entire network node from 192 to 384 ports or more, meeting the deployment requirements of the world's leading service providers, Ikanos says. Handling crosstalk at that level presents a massive computational challenge requiring gigabits of memory. With Ikanos' patent-pending algorithms, compression and coding techniques, service providers can deliver 100 Mbps performance at the scale necessary to support their growing subscriber bases via a cost-effective commercial silicon and software solution.
Ikanos' NodeScale Vectoring complies with the International Telecommunication Union standards group (ITU-T) G.vector standard (G.993.5), which provides for dynamic spectrum management level 3 (DSM-3) through the use of advanced crosstalk cancellation techniques.By Brian Santo CedMagazine.com - October 25, 2010
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Original Article Here
The technique, which Ikanos calls NodeScale Vectoring, is based on the G.993.5 ITU standard for limiting crosstalk. Ikanos' variation will work across an entire node (approximately 384 ports), the company says, in contrast to other implementations that work across only a single line card (48 ports).
Using the technique, DSL throughputs could be improved to 100 Mbps – sufficient, the company believes, to delay the need to drive fiber to the home. It will certainly be less costly than FTTH, the company said.
The technology would not help DSL become anywhere near symmetrical, but it may be able to support upstream rates of anywhere between 40 to perhaps 60 Mbps.
The technology is currently proven in labs. Service providers are now evaluating the technology, and commercialization would follow those evaluations.
One of the challenges in deploying very-high-speed Internet access over existing infrastructure is the degradation that occurs as a result of crosstalk between coincident copper wire pairs. Each wire can often and intermittently interfere with neighboring wires, thereby introducing noise, limiting line quality and reducing VDSL performance. Other impediments, including AM radio signals, power lines, lightning and other atmospheric elements, inject even more noise into the copper network.
Ikanos' NodeScale Vectoring technology analyzes the crosstalk and interference environment in real time and creates a set of compensation signals that effectively eliminates both.
In fact, NodeScale Vectoring cancels noise across an entire network node from 192 to 384 ports or more, meeting the deployment requirements of the world's leading service providers, Ikanos says. Handling crosstalk at that level presents a massive computational challenge requiring gigabits of memory. With Ikanos' patent-pending algorithms, compression and coding techniques, service providers can deliver 100 Mbps performance at the scale necessary to support their growing subscriber bases via a cost-effective commercial silicon and software solution.
Ikanos' NodeScale Vectoring complies with the International Telecommunication Union standards group (ITU-T) G.vector standard (G.993.5), which provides for dynamic spectrum management level 3 (DSM-3) through the use of advanced crosstalk cancellation techniques.By Brian Santo CedMagazine.com - October 25, 2010
Let’s us provide you (xDSL, VDSL filters/ Splitters, Cable & Wire Harness)
Original Article Here
Jun 7, 2011
VDSL Port Shipments Grow to Record Level in the First Quarter
EMEA and North America Account for Most Shipments
REDWOOD CITY, Calif. — According to a newly published report by Dell’Oro Group, the trusted source for market information about the networking and telecommunications industries, VDSL port shipments reached a record level in the first quarter of 2011, surging almost 50% over the year-ago period.
“With ADSL being a mature technology with limited bandwidth capabilities, many service providers are upgrading their networks with high-speed VDSL or PON equipment to enable new, high-bandwidth intensive services such as IPTV,” said Tam Dell’Oro, President of Dell’Oro Group. “In many situations, VDSL is also being used as part of all-IP network transformations that utilize multiservice access nodes and soft switches with the goal of decommissioning older TDM infrastructure,” Dell’Oro added.
The report also indicates that VDSL growth was led by shipments to EMEA, which almost doubled over the year-ago period and accounted for more than 60% of worldwide VDSL shipments. North America was the second largest region for VDSL, accounting for a quarter of total VDSL. The majority of these were purchased by AT&T to support its U-verse IPTV service, the largest fiber-to-the-node/VDSL upgrade project currently being deployed. Tuesday, June 7th, 2011
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Original Article Here
REDWOOD CITY, Calif. — According to a newly published report by Dell’Oro Group, the trusted source for market information about the networking and telecommunications industries, VDSL port shipments reached a record level in the first quarter of 2011, surging almost 50% over the year-ago period.
“With ADSL being a mature technology with limited bandwidth capabilities, many service providers are upgrading their networks with high-speed VDSL or PON equipment to enable new, high-bandwidth intensive services such as IPTV,” said Tam Dell’Oro, President of Dell’Oro Group. “In many situations, VDSL is also being used as part of all-IP network transformations that utilize multiservice access nodes and soft switches with the goal of decommissioning older TDM infrastructure,” Dell’Oro added.
The report also indicates that VDSL growth was led by shipments to EMEA, which almost doubled over the year-ago period and accounted for more than 60% of worldwide VDSL shipments. North America was the second largest region for VDSL, accounting for a quarter of total VDSL. The majority of these were purchased by AT&T to support its U-verse IPTV service, the largest fiber-to-the-node/VDSL upgrade project currently being deployed. Tuesday, June 7th, 2011
Let’s us know if we could able to supports you and your team
Original Article Here
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