NEWS & BUSINESS
nbn cites service quality issues in HFC suspension
Deutsche Telekom tentatively tests FTTH waters
developed a performance- improved multicore, multimode optical fibre and KDDI Research provided signals to evaluate the 10-petabit transmission and then the transmission characteristics with an efficient approach to evaluate all the channels, achieving the record 10.16 petabits/second transmission over 11.3 km. SEI added that this experiment demonstrates Australia’s wholesale-only, open-access broadband network operator nbn has announced that it will temporarily pause all new orders over its Hybrid Coaxial- Fibre (HFC) access network. This pause will be in effect until incremental field work is undertaken to raise the quality of service for end users. A statement said that the changes to the HFC (also known as Pay TV network) rollout – which was currently adding an average of nearly 80,000 new premises each month – were designed to provide a better experience when getting connected and when using the service. The changes will also help to further improve the reliability of the network. In order to meet a higher level of service quality, nbn Co will be performing advanced network testing and remediation where
of more than 10 petabits/ second using multicore, multimode optical fibres. “We will contribute to the development of the optical fibre transmission technologies for future versatile and large capacity data communication including 5G mobile system while assessing the range of applicability of multicore and multimode fibres,” the company announced, The achievement was first reported as a post-deadline paper at ECOC 2017. that, while it was pleased that many end users served over its HFC network were satisfied, too many were not having the experience they deserve when getting connected, and some were not experiencing the full potential of the network. needed, wholesale connector replacements, signal amplification calibration, and lead-in work as required. The company’s current corporate plan calls for nearly three million premises to ultimately be served by HFC access technology. Today, nearly one million premises are ready to connect, with 370,000 having done so already. The new initiatives will be first applied to the network where there are existing end users. Once these areas meet the required standard, the company says it will then focus on those areas next scheduled in the rollout queue. nbn Co management said
KDDI Research and Sumitomo Electric Industries (SEI) have announced that their successful ultra- high capacity optical fibre transmission experiment has broken the world record for transmission capacity through a single optical fibre. The previous record stood at 2.15 petabits/second, with the group achieving 10.16 petabits/s over multicore optical fibre, which enables 114-space multiplicity. With a transmission capacity of 10 petabits/second, data for 25,000 Blu-ray disks (50 GB/both sides) would be transmitted in one second, or 100 million people could simultaneously communicate at 100 megabits. transmission record with 10 petabit/s Deutsche Telekom is testing the national appetite for FTTH. Up to this point, the telco has focused on taking fibre to business parks, or building fibre infrastructure to cable distribution boxes and using vectoring over copper to complete the run to homes. A new Telekom marketing strategy is to pilot the build-out of FTTH in smaller towns. The first project is being launched in the town of Bad Staffelstein in Franconia. Starting in December until the end of February, residents there can register for a fibre optic line. If a minimum of 750 orders for ultra-fast Internet are received during the pre-marketing phase, the fibre optic network will be built out to the community by the end of 2018. In addition, early bird sign-ups for an FTTH service will not have to pay any installation charges. Further pilot towns in Baden-Württemberg, Hesse, Sumitomo breaks ultra-high
SEI commented, “The mobile communication system after 5G will require innovations both in wireless technologies and in the network and optical fibre transmission technologies that support them. Our new technology would be expected to be a key technology that will support broadband and a low latency mobile communications system after 5G and will provide new experiences and services.” In the experiment, SEI give people access to high- speed Internet lines,” added van Damme. The company is also beefing up its efforts to expand its main fibre optic infrastructure in areas outside of the pilot projects. Saxony, and Thuringia are to follow early next year. “We introduced pre- marketing in 2011 and came back to it as a great tool for building out fibre optic infrastructure, says Niek Jan van Damme, head of Deutsche Telekom’s business operations in Germany. “Demand was mostly too low a few years ago, but we’re hoping for a better response this time around.” Deutsche Telekom plans to lay the fibre optic cables using micro-trenching technology. “This saves us time and money and minimises the disruption for residents. More communities should opt to use this innovative technology and
the feasibility of ultra- high capacity optical communication systems
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Figure 2 Comparison between past experimental results and achievement in this experiment Comparison between past experimental results and achievement in this experiment.
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| ISSUE 11 | Q4 2017
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