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"Word Record" as Single Laser and Fibre Optic Cable Delivers 43 Tbps
Mark.JUK (1222360) writes "A research group working out of the Technical University of Denmark claims to have broken "another world record" in fibre optic data transfers after they were able to demonstrate speeds of 43 Terabits per second over a single laser and fibre optic cable (67km long), which is theoretically much closer to real-world connections than most other lab tests where multiple lasers and cables can be used.
Professor Leif Oxenløwe of DTU Fotonik said that his team had "used all the known, neat tricks that exist nowadays to make data in five dimensions: time, frequency, polarization, quadrature and space”. However one such "neat trick" is the decision not to use a traditional single core cable and to instead adopt a 7 core (glass threads) design from Japanese telecoms firm NNT.
Admittedly the new fibre optic cable does not take up any more space than the standard single-core version, but it's still a new cable and thus perhaps the "world record" claims aren't quite comparing apples to apples."
Alcatel-Lucent's XG-FAST Pushes 10,000Mbps over Copper Phone Lines
Mark.JUK (1222360) writes "The Bell Labs R&D division of telecoms giant Alcatel-Lucent has today claimed to set a new world record after they successfully pushed "ultra-broadband" speeds of 10,000 Megabits per second (Mbps) down a traditional copper telephone line using XG-FAST technology, which is an extension of G.fast (ITU G.9700).
G.fast is a hybrid-fibre technology, which is designed to deliver Internet speeds of up to 1000Mbps over shorter runs of copper cable (up to around 250 meters via 106MHz+ of radio spectrum). The idea is that a fibre optic cable is taken closer to homes and then G.fast works to deliver the last few metres of service, which saves money because the operator doesn't have to big up your garden to lay new cables.
By comparison XG-FAST works in a similar way but via an even shorter run of copper and using frequencies of up to 500MHz. For example, XG-FAST delivered its top speed of 10,000Mbps by bonding two copper lines together over just 30 metres of cable. But this might be a problem for commercial operators, which will want to maximise profits by using more copper to reach more homes and not less."
EU Consumers Expected to Demand 165Mbps Broadband by 2020
Mark.JUK (1222360) writes "Cable Europe, the official trade association for cable telecoms and TV operators across the continent, has published a new study with cable ISP NL Kabel that claims to predict that consumers will be demanding average broadband download speeds of 165Mbps (Megabits per second), with uploads of 20Mbps, by the year 2020. At an extreme around 2% of all users are also predicted to demand 1000Mbps (1 Gigabit per second).
The research is based off a "quantitative model", which was designed by a team working out of the Technical University of Eindhoven and Dialogic to predict demand for Internet speeds in the coming years. But equally some might view it as a piece of self-serving research by those parties with an interest in cable and one that conflicts with other studies. What a person "needs" remains very much subjective, balanced against how they use the technology and their expectations."
Aston University to Halt World Fibre Optic Internet "Capacity Crunch" with PEACE
Mark.JUK (1222360) writes "A team of international scientists working out of Aston University in England have pledged to tackle the pending Internet "capacity crunch" in major fibre optic networks through a new GBP1.5 million project called Petabit Energy Aware Capacity Enhancement (PEACE), which aims to "significantly" improve bandwidth and reduce energy consumption on related networks by mitigating the signal distortion that exists in existing cables.
According to Professor Ellis of Aston's Institute for Photonic Technologies, related signals "have been amplified to such an extent that they are now more intense than sunlight at the surface of the Earth’s atmosphere" and this causes the distortion. But PEACE intends to tackle this by using a balance of digital, analogue electronic and optical processing to halve the energy consumption of optical transponders and boost bandwidth.
"We will increase network capacity by maximising spectral use, and developing techniques to combat the nonlinear effects induced by the high intensities encountered in today’s networks," said Professor Ellis."
Huawei Successfully Tests New 802.11ax WiFi Standard at 10.53Gbps
Mark.JUK (1222360) writes "Chinese ICT developer Huawei has confirmed that it was able to achieve a record transmission data rate of 10.53Gbps on 5GHz frequency bands in laboratory trials of their new 802.11ax WiFi (WLAN) wireless networking standard. The testing, which was conducted at Huawei’s campus in Shenzhen, used a mix of MIMO-OFDA, intelligence spectrum allocation, interference coordination and hybrid access to achieve the result and the new technology could hit the market during 2018."
EU Court of Justice Paves Way for "Right to be Forgotten" Online
Mark.JUK (1222360) writes "The European Court of Justice (ECJ) has today ruled that Google, Bing and others, acting as internet search engine operators, are responsible for the processing that they carry out of personal data which appears on web pages published by third parties. As a result any searches made on the basis of a person’s name that returns links/descriptions for web pages containing information on the person in question can, upon request by the related individual, be removed.
The decision supports calls for a so-called "right to be forgotten" by Internet privacy advocates, which ironically the European Commission are already working to implement via new legislation. Google failed to argue that such a decision would be unfair because the information was already legally in the public domain."
Ericsson and NTT DOCOMO Trial 5G Mobile Broadband at 10Gbps
Mark.JUK (1222360) writes "Japanese mobile operator NTT DOCOMO has announced that they'll make use of Ericsson's advanced antenna technologies and radio base stations in order to conduct one of the world’s first trials of a possible 5G based Mobile Broadband technology in Yokosuka (Japan), which aims to deliver downstream speeds of more than 10 Gigabits per second using the 15GHz radio spectrum frequency. But this is just one possible candidate for 5G connectivity and many organisations are still working to try and define an official standard, while most countries don't expect the first services to be deployed until around the year 2020."
11-Year UK Study Reports No Health Danger from Mobile Phone Transmissions
Mark.JUK (1222360) writes "The United Kingdom's 11-years long Mobile Telecommunications and Health Research Programme (MTHR) has today published a comprehensive report that summarises 31 research projects, which investigated the potential for biological or adverse health effects of mobile phone and wireless signals on humans (e.g. as a cause for various cancers or other disorders).
The good news is that the study, which has resulted in nearly 60 papers appearing in peer-reviewed scientific journals, found "no evidence" of a danger from mobile transmissions in the typically low frequency radio spectrum bands (e.g. 900MHz and 1800MHz etc.). So if you’re wearing them, you can finally remove those tin foil hats."
BT and Alcatel-Lucent Record Real-World Fibre Optic Speed of 1.4Tbps in the UK
Mark.JUK (1222360) writes "The United Kingdom's national telecoms operator, BT, has successfully teamed up with Alcatel-Lucent to conduct a field trial that delivered real-world data speeds of 1.4 Terabits per second over an existing commercial-grade 410km fiber optic link. The trial used a “record spectral efficiency” of 5.7 bits per second per Hertz and Flexgrid technology to vary the gaps between transmission channels for 42.5% greater data transmission efficiency than today’s standard networks.
The speed was achieved by overlaying an “Alien Super Channel” (i.e. it operates transparently on top of BT’s existing optical network), which bundled together 7 x 200Gbps (Gigabits per second) channels and then reduced the “spectral spacing” between the channels from 50GHz to 35GHz using the 400Gb/s Photonic Services Engine (PSE) technology on the 1830 Photonic Service Switch (PSS). It's hoped that this could help boost capacity to those who need it without needing to lay expensive new fiber cables."
Scientists Promise 10x Faster Fibre Optic Networks via Nyquist Sinc Light Pulses
Mark.JUK (1222360) writes "A group of scientists working at one of Switzerland’s two Federal Institutes of Technology have published a new paper in Nature, which reveals how the performance of existing fibre optic networks could be boosted by shortening the distance between pulses of laser light using a Nyquist sinc pulse.
In simple terms the team were able to change the shape of the spectrum to be more rectangular, which meant that the pulses could interfere but the point at which they’re read remains clear (i.e. equivalent to reducing the space between the pulses). It’s claimed that the feat, which was achieved with a simple laser and modulator, could help to deliver speeds that are ten times faster than today’s."
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UK Project Achieves 10.5Gbps Speeds via Micron Sized LED Light Bulb Network
Mark.JUK (1222360) writes "The Ultra-Parallel Visible Light Communications (UP-VLC) project in the United Kingdom has successfully developed Light Fidelity (Li-Fi) technology, which uses tiny LED (Light-Emitting Diode) light bulbs to transmit data via the visible light part of the electromagnetic spectrum, so that a single bulb can deliver speeds of 10.5Gbps (Gigabits per second).
The technology works by causing the LED to flash incredibly fast. At the same time Orthogonal Frequency Divisional Multiplexing (OFDM) is used to further improve performance by varying the lights intensity and turning each of its three primary colours (red, green and blue) into data channels (i.e. each colour can send data at speeds of 3.5Gbps)."
German Scientists Achieve Record 100Gbps via Wireless Data Link
Mark.JUK (1222360) writes "A joint team of German scientists working at the Karlsruhe Institute of Technology (KIT) have successfully achieved a new world record for wireless data transfers. The team were able to transmit information at speeds of 100 Gigabits per second by using a radio network operating at the frequency of 237.5GHz and over a distance of 20 metres (note: a prior experiment hit 40Gbps over 1km between two skyscrapers).
The radio signals were generated by a photon mixer device that uses two optical laser signals of different frequencies, which were then superimposed on a photodiode to create an electrical signal (237.5 GHz) that could be radiated via an antenna. But the team aren’t happy with breaking one record and their future attempts will seek to break the 1 Terabit per second (Tbps) barrier."
Bell Labs Break Record with 31Tbps via a Single 7200km Optical Fibre
Mark.JUK (1222360) writes "Alcatel-Lucent's research and development division, Bell Labs, has successfully broken yet another record after it used 155 lasers (each operating at different frequencies and carrying 200Gbps of data over a 50GHz frequency grid) and an enhanced version of Wavelength Division Multiplexing (WDM) to send information at a staggering speed of 31 Terabits per second over a single 7200km long optical fibre cable. Previous experiments have been faster but only over shorter distances or by using a different type of fibre optic cable entirely."
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Japan and EU Commit 18m Euros to Develop 100Gbps Internet Access
Mark.JUK (1222360) writes "The European Union and Japan have unveiled a joint investment of 18 Million Euro’s that aims to build more efficient fibre optic broadband networks that are “5000 times faster than today’s average European broadband ISP speed (100Gbps compared to 19.7Mbps)“.
The funding will go towards supporting six research projects, which range from an effort to enable fibre optic networks at more than 100Gbps (aka – STRAUSS), to investigating new ways of ensuring efficient use of energy in information networks (aka — GreenICN).
Faster than 100Gbps fibre optic links already exist but the new research could potentially help to bring these closer to homes. Some ISPs already offer 1Gbps+ connections to home users; not so long ago everybody was still stuck on a 50Kbps dialup link or slower."
German Scientists Create 3Gbps Visible Light Network from LED Ceiling Lamps
Mark.JUK (1222360) writes "Scientists working at Berlin’s Fraunhofer Heinrich Hertz Institute in Germany have developed new components that can turn standard “off-the-shelf” LED (Light-Emitting Diode) room lights into an Optical Wireless Local Area Network (OWLAN) that delivers data transmission rates of up to 3Gbps (Gigabits per second).
The new kit is an extension of HHI’s earlier work, which in 2011 delivered the first 800Mbps (Megabits) capable network using ordinary flashing LED lights. Since then the kit has been improved to achieve a transmission rate of 1Gbps per single light frequency (basic LED’s usually use up to three light frequencies) and the operating bandwidth has been pushed to 180MHz from 30MHz before."
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ITU Moot Global Target of Affordable 20Mbps Broadband for All by 2020
Mark.JUK writes "Dr Hamadoun Touré, Secretary-General of the International Telecommunication Union (ITU), has proposed to “dream big” by setting a new broadband access target for the world. In short, Touré would like to see the United Nations (UN) update its global digital development targets to include a commitment that would require countries around the world to ensure that everybody can access broadband internet speeds of 20Mbps (Megabits per second) from just $20 by 2020. Easier said than done, especially in poorer countries."
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New EU Funded RITE Project Aims to Reduce Internet Latency Times
Mark.JUK writes "In the rush towards ever faster broadband speeds we often forget that there are other considerations for internet performance. In particular latency (i.e. ping times), which effectively reflects the time (a delay most often displayed in milliseconds) that it takes for a networked server or device to respond, can influence the performance of time-sensitive internet applications like multiplayer games, financial transactions, video streaming and voip etc.
The University of Aberdeen in Scotland apparently has a number of "smart software tweaks" in mind that could help to cut internet latency by targeting improvements at the “large buffers hidden inside network equipment" (e.g. routers). As a result it's now joined a consortium of other like-minded groups, including British Telecom (BT) and Alcatel-Lucent, on a new project called Reducing Internet Transport Latency (RITE) that has been backed by 3.57 Million Euros from the European Union (EU) and aims to one day make high pings a thing of the past."
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UK Researchers Build Micron LED Light Based Wireless Network
Mark.JUK writes "Scientists working at the University of Strathclyde in Scotland (United Kingdom) have begun to develop a new Light Fidelity (Li-Fi) technology that will use special micron-sized LED (Light-Emitting Diodes) lights, such as those that could be used as part of home lighting or TV displays, to form part of a sophisticated wireless communications network (much like Wi-Fi is today).
The principal, which revolves around manipulating the on/off flicker of LED lights to produce a digital network (a bit like Morse Code from a torch), is not new but most of the other teams are focusing on larger Li-Fi LEDs of around 1mm2 in size. However micron sized LEDs not only allow you to use more lights (each of which can act as a separate data channel) but they can also flicker on and off around 1,000 times quicker than the larger LEDs. The future really is bright! So long as you don't walk in front of it."
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Fujitsu Claim 30x Faster Internet File Transfers with New TCP Method
Mark.JUK writes "Fujitsu Laboratories Ltd. in Japan claims to have developed a new Transmission Control Protocol (TCP) that, by using a software-only approach, will dramatically improve latency times and has already achieved a throughput increase of over 30 times during simulated internet file transfers between Japan and the USA. The new protocol, which will be commercialised during 2013, is said to incorporate "an efficient proprietarily developed retransmission method based on User Datagram Protocol (UDP)" and "makes it possible to easily speed up existing TCP applications without having to modify them"."
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UK ISPs Respond to the Dangers of Using Carrier Grade NAT Instead of IPv6
Mark.JUK writes "Several major Internet Service Providers in the United Kingdom, including BSkyB, Virgin Media, TalkTalk, AAISP and Fluidata, have warned that the adoption of Carrier Grade NAT (IPv4 address sharing) is likely to become increasingly common in the future. But the technology, which many view as a delaying tactic until IPv6 becomes more common place, is not without its problems and could cause a number of popular services to fail (e.g. XBox Live, PlayStation Network, FTP hosting etc.). The prospect of a new style of two tier internet could be just around the corner."
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