Sunday, June 28, 2015

Open networking shifts the dynamics to SDN apps

The whole Open Networking revolution is really about transforming how infrastructure is built, and changing the dynamics from switches and protocols to the business applications, says Kumar Srikantan, President and CEO of Pluribus Networks.

If you think about this, it's no different that what has happened in the world of mobile devices.  Android and iOS are not really about mobile telephony but rather a platform for other applications.

Open networking is all about enabling the next generation of applications.

http://open.convergedigest.com/2015/06/open-networking-shifts-dynamics-from.html


UCSD Cites Major Advancement in Optical Transmission

Researchers at the University of California - San Diego announced a breakthrough in photonic transmission with the potential to increase the efficiency of long haul fiber optic cables.

Research published in the June 26 issue of the journal Science describes a solution to a long-standing roadblock to increasing data transmission rates in optical fiber: beyond a threshold power level, additional power increases irreparably distort the information travelling in the fiber optic cable.

“Today’s fiber optic systems are a little like quicksand. With quicksand, the more you struggle, the faster you sink. With fiber optics, after a certain point, the more power you add to the signal, the more distortion you get, in effect preventing a longer reach. Our approach removes this power limit, which in turn extends how far signals can travel in optical fiber without needing a repeater,” said Nikola Alic, a research scientist from the Qualcomm Institute, the corresponding author on the Science paper and a principal of the experimental effort.

In lab experiments, the researchers at UC San Diego demonstrated transmission over a distance of 12,000 kilometers with standard amplifiers and no repeaters (electronic regenerators). The breakthrough relies on wideband “frequency combs” that the researchers developed. The frequency comb described in this paper ensures that the signal distortions — called the “crosstalk” — that arises between bundled streams of information travelling long distances through the optical fiber are predictable, and therefore, reversible at the receiving end of the fiber.

“Crosstalk between communication channels within a fiber optic cable obeys fixed physical laws. It’s not random. We now have a better understanding of the physics of the crosstalk. In this study, we present a method for leveraging the crosstalk to remove the power barrier for optical fiber,” explained Stojan Radic, a professor in the Department of Electrical and Computer Engineering at UC San Diego and the senior author on the Science paper. “Our approach conditions the information before it is even sent, so the receiver is free of crosstalk caused by the Kerr effect.”

http://ucsdnews.ucsd.edu/pressrelease/electrical_engineers_break_power_and_distance_barriers_for_fiber_optic_comm

OneWeb Advances its Vision for Ku-band LEO Constellation

OneWeb, the venture planning to build, deploy and operate a low earth orbit (“LEO”) Ku-band satellite constellation, announced $500 million in funding from  Airbus, Bharti Enterprises, Hughes Network Systems, (Hughes), a subsidiary of EchoStar Corp., Intelsat, Qualcomm, The Coca-Cola Company, Totalplay, a Grupo Salinas Company, owned by Ricardo B. Salinas, and Richard Branson's Virgin Group.

"The dream of fully bridging the digital divide is on track to be a reality in 2019,” said Greg Wyler, founder of OneWeb. “Together with our committed and visionary founding shareholders we have the key elements in place: regulatory, technology, launches, satellites, as well as commercial operators in over 50 countries and territories. We are committed to solving one of the world’s biggest problems – enabling affordable broadband Internet access for everyone. We are excited about the next phase, which will involve working with countries, telecom operators and aid organizations to help them realize their goals of open and ubiquitous access.”

Some highlights on the OneWeb plan:
  • OneWeb aims to launch a constellation of 648 small, low Earth orbit (LEO) satellites to provide global broadband and mobile telephone services.
  • The system will bring more than 10 Tbps of new capacity to rural areas around the globe.
  • OneWeb’s User Terminals will provide high-speed connectivity with no change in latency during satellite handovers to ensure excellent voice quality, gaming and web experience. The terminals can operate with optionally included solar panels, battery packs, and WiFi/LTE/3G and 2G radios to provide coverage directly to cell phones, tablets and laptops.
  • OneWeb's microsatellites will use onboard GPS sensors and ground-tracking measurements to know their position within meters. The satellites will be able maneuver to avoid obstacles.  They will automatically de-orbit at end-of-life to minimize the space junk problem.
  • OneWeb has developed a “Progressive Pitch” technology that enables it to use satellite spectrum in the most efficient way by gradually and slightly tilting the satellites as they approach the equator to make sure they never cause, or receive, interference from GEO satellites.
  • OneWeb has contracted Arianespace for 21 multi-satellite launches on Soyuz rockets beginning in 2017, plus options for five (5) additional Soyuz launches and three (3) Ariane 6 launches. 
  • OneWeb satellites will be launched into a near polar orbit at an altitude of 500 kilometers before raising themselves to their operational orbit.
  • OneWeb satellites will weigh less than 150kg.
  •  Virgin Galactic has been selected to provide 39 singlel-sat launches using it's LauncherOne smallsat launch vehicle.
  • Intelsat will partner with OneWeb to use OneWeb’s LEO platform, once established, to complement Intelsat’s geostationary orbit (“GEO”) satellite services, resulting in the first and only fully global, pole-to-pole high throughput satellite system. 
  • Intelsat will make a minority share investment of $25 million in OneWeb. 

http://www.oneweb.world/

Telstra Launches Nationwide Wi-Fi Service in Partnership with Fon

Telstra is launching a nationwide Wi-Fi service that provides its customers with access to hotspots across Australia and overseas.

Telstra Air includes access to thousands of newly deployed Wi-Fi hotspots in payphone sites and retail outlets in popular locations across Australia.

Telstra has joined exclusively with Fon to allow Telstra Air members to access their home broadband allowance at 15 million hotspots overseas in 18 countries including the UK, Spain, Brazil, Japan, France and Germany, making it easier and more affordable to connect when travelling.

Telstra home broadband customers, including customers on the NBN, can become a Telstra Air member at no additional charge provided they have a compatible gateway.

https://www.telstra.com.au/broadband/wifi

See also