Slow internet speeds and the Internet ‘rush hour’ – the peak time when data speeds drop by up to 30% – could be history with new hardware designed and demonstrated by UCL researchers that provides consistently high-speed broadband connectivity.
The new receiver technology enables dedicated data rates at more than 10,000 megabits-per-second (Mb/s) for a truly super-fast, yet low-cost, broadband connection to every UK home.
“UK broadband speeds are woefully slow compared to many other countries, but this is not a technical limitation. Although 300 Mb/s may be available to some, average UK speeds are currently 36 Mb/s. By 2025, average speeds over 100 times faster will be required to meet increased demands for bandwidth-hungry applications such as ultra-high definition video, online gaming, and the Internet of Things,” explained lead researcher Dr Sezer Erk?l?nç (UCL Electronic & Electrical Engineering).
“The future growth in the number of mobile devices, coupled with the promise of 5G to enable new services via smart devices, means we are likely to experience bandwidth restrictions; our new optical receiver technology will help combat this problem.”
For the study, published today in Nature Communications and funded by the EPSRC UNLOC Programme and Huawei Technologies, scientists from the UCL Optical Networks Group and the University of Cambridge developed a new, simplified receiver to be used in optical access networks: the links connecting internet subscribers to their service providers.
“To maximise the capacity of optical fibre links, data is transmitted using different wavelengths, or colours, of light. Ideally, we’d dedicate a wavelength to each subscriber to avoid the bandwidth sharing between the users. Although this is already possible using highly sensitive hardware known as coherent receivers, they are costly and only financially viable in core networks that link countries and cities.
“Their cost and complexity has so far prevented their introduction into the access networks and limits the support of multi?Gb/s (1 Gb/s=1000 Mb/s) broadband rates available to subscribers,” said co-author and Head of the Optical Networks Group, Professor Polina Bayvel (UCL Electronic & Electrical Engineering).
The new, simplified receiver retains many of the advantages of coherent receivers, but is simpler, cheaper, and smaller, requiring just a quarter of the detectors used in conventional receivers.
Simplification was achieved by adopting a coding technique to fibre access networks that was originally designed to prevent signal fading in wireless communications.. This approach has the additional cost-saving benefit of using the same optical fibre for both upstream and downstream data.
“This simple receiver offers users a dedicated wavelength, so user speeds stay constant no matter how many users are online at once. It can co-exist with the current network infrastructure, potentially quadrupling the number of users that can be supported and doubling the network’s transmission distance/coverage,” added Dr Erk?l?nç.
The receiver was tested on a dark fibre network installed between Telehouse (east London), UCL (central London) and Powergate (west London). The team successfully sent data over 37.6 km and 108 km to eight users who were able to download/upload at a speed of at least 10 Gb/s. This is more than 30 times faster than the fastest broadband available in the UK, today.
“BT Openreach recently announced that fibre access is a key focus and must improve. With high-capacity broadband a priority for the UK government, we will be working to reduce the electrical power requirements of this technique to make this commercially viable in the nearest future. We believe that it has real potential to provide high-speed broadband connectivity to every home, which will support the growing digitally enabled economy in the years to come,” concluded Professor Bayvel.
The Latest on: Internet speed
- Why rural residents need better access to care, starting with high-speed Interneton October 18, 2019 at 1:06 pm
Did you know that “rural America” encompasses 97 percent of the US land mass? And, 60 million people (20 percent of the U.S. population) live in rural America. This matters when it comes to healthcare ...
- A crushing new cost estimate of SpaceX's planned mega-fleet of 42,000 Starlink internet satellites glosses over one humongous detail: Starshipon October 18, 2019 at 12:30 pm
A new Morgan Stanley Research update estimates the cost of SpaceX's revised Starlink internet plan without Starship: a future low-cost mega-rocket.
- Global Wireless Broadband In Public Safety Market- What Are The Main Factors That Contributing Towards Industry Growth?on October 18, 2019 at 6:35 am
Wireless broadband for public safety system improves the quality of people management and ... Market Drivers 1.1 Disaster and c management mitigation 1.2 Enhanced speed on next-generation network 1.3 ...
- Kyivstar leads by broadband speed in Ukraine in Ookla testson October 18, 2019 at 5:03 am
Ukrainian mobile operator Kyivstar led by broadband speed in the country in the period April-September, reports BizLigaNet citing a study by Ookla. The average download speed was 22.4 Mbps on Kyivstar ...
- SpaceX may want to launch 42,000 internet satellites — about 5 times more spacecraft than humanity has ever flownon October 17, 2019 at 1:00 pm
Elon Musk wants to cover Earth in high-speed Starlink web access. But crushing SpaceX's competition may require tens of thousands more satellites.
- The best home internet deals for October 2019: AT&T, Spectrum, Optimum and moreon October 17, 2019 at 8:40 am
Our online habits have changed a lot over the past decade (and even over the past few years), with modern high-speed internet allowing for drastic worldwide increases in everything from ...
- Virginia Beach councilman proposes changes for Southside high-speed internet ring agreementon October 16, 2019 at 6:39 pm
The agreement between Chesapeake, Norfolk, Portsmouth, Suffolk and Virginia Beach brings high-speed internet ring to the cities. Councilman Moss wants protection for future City Councils to withdraw ...
- All city schools now have high-speed internet: Education Dept.on October 16, 2019 at 3:28 am
Dial-up days are done at city schools. All of the city’s approximately 1,300 public school buildings now have high-speed internet to keep up with advanced programs, like an initiative to expand ...
- Test if your Internet connection speed is truly what you paid foron October 11, 2019 at 6:00 pm
In partnership with nPerf, here's a great way to see if your bandwidth is really up to what your ISP is telling you. To test your Internet speed simply start the service in the widget below (you may ...
- The internet threatened to speed up the death of endangered languages. Could it save them instead?on October 8, 2019 at 10:23 am
More are going extinct every year. It was once widely feared that the internet revolution would speed up this decline. If developers and smartphone manufacturers aren't willing to invest in supporting ...
via Google News and Bing News