And because of exploding Internet access Telcos have been interested in finding ways to get more bandwidth out of their copper networks.
It is an interest that has largely been fuelled by intensified competition from the cable operators and the resulting need for Telcos to start delivering the combination of video, data, and voice services: However, the maximum loop length of such high bandwidth is only about m to m depending on quality of the copper lines. It is a significant issue to broaden VDSL coverage and roll-out other bandwidth-driven applications.
Actual, an attractive Triple Play service package requires about 50Mbps per household — simultaneously enabling 1 or 2 high-definition television HDTV channels, high-speed Internet access, and Voice-over-IP telephony.
Main drivers for additional increase of bandwidth will be: Intense Competition DSL operators are facing competition from cable operators offering bandwidth who use DOCSIS 3. Additional competition comes from fiber operators using GPON Gigabit Passive Optical Network and Active Ethernet technology to offer up to Gigabit bandwidth packages.
It is a fact that Internet packages including a higher bandwidth can increase ARPU Average Revenue Per User.
A rapid ROI Return On Investment is another key point that will be taken into consideration by DSL operators that will affect their investment in fiber or new DSL solutions. Benefits of Pair-Bonded VDSL2 There is good news for both DSL service providers and subscribers to DSL service solutions: The pair-bonded VDSL2 solution is able to increase both bandwidth and loop reach.
It is the best solution to help DSL operators to solve both the bandwidth competition and deployment coverage issues by upgrading the existing DSL infrastructure whilst reducing investments to a minimum.
As the figure below indicates, 2-pair-bonded VDSL2 can offer Mbps over up to m, 80Mbps over up to m and 50Mbps over up to 1,m. VDSL2 vectoring calculates the interference between all pairs in a binder, based on the actual signals, and will use this information to generate a noise cancellation signal on each pair, effectively removing all crosstalk.
See the figure below. Due to the amount of calculations involved, vectoring will provide the best results in nodes with a limited number of lines FTTN or FTTB deployments. The only requirement is that all lines are under full control of a single operator, meaning that there can be no sub-local loop unbundling Highlander principle: Indeed, if the lines belong to multiple operators and are terminated on different nodes, then there is no way to collect all the signal and crosstalk data.
In addition, the gateways support HomePNA 3. The unified USB port supports print servers, network attached storage appliances NAS or Z-Wave wireless device controllers for future Smart Home applications. Now this gateway solution is added by a pair-bonded integrated access device to include VoIP, Mbps wireless LAN and 2 USB ports.ZyXEL Network Variety : การตั้งค่า ZyXEL ADSL/VDSL Router (ตอนที่ 1)
An additional Gigabit WAN port and a 4-port Gigabit switch complete the device. Besides that, the gateways can be managed remotely in accordance with TR and TR The Zyxel pair-bonded VDSL2 solution will not only take broadband access to the next level, it will leverage DSL technology and help service providers to offer a practical platform for user-centric bandwidth-demanding applications.
The next technology step will be in depending on a chipset vendor having a vectoring solution ready for customers.