Posts tagged with "networking"
Monday, 23. November 2009, 11:40:16
networking, web, protocols, Delay-Tolerant
...
Internet founding father cum Google evangelist Vint Cerf is working to bring his interplanetary interwebs protocol to mobile networks here on earth.
In 1998, working in tandem with NASA's Jet Propulsion Laboratory, the (co-)father of the seminal TCP protocol launched an effort to create an "interplanetary extension to the internet." Initially, the team tried to make this work with the good ol' TCP/IP protocol, but Cerf and crew soon realized that this was a non-starter.
So, Cerf and team booted TCP/IP from the heavens and build an interplanetary replacement they called the Delay-Tolerant Networking (DTN) protocol. Cerf admits this isn't the most attractive moniker.
Source:
http://www.theregister.co.uk/2009/11/05/vint_cerf_on_mobile/
Wednesday, 10. December 2008, 09:17:23
broadband, mobile communications, networking
Mobile broadband speeds could hit a blistering 42Mb/sec as early as next year, according to Ericsson's chief technology officer.
The idea seems far-fetched given that even the fastest dongles currently hover at around 7.2Mb/sec, but according to John Cunliffe, the technology to smash that barrier is just around the corner.
"If you look at what's actually happening, the fastest service in the UK at the moment is 7.2Mb/sec, but we can easily see how we get to 14Mb/sec by improving the codes using the modulation," he tells PC Pro. "After that there are two steps that can boost speed..”
Source:
http://www.pcpro.co.uk/news/240672/mobile-broadband-to-hit-42mbsec-in-2009.html
Wednesday, 26. November 2008, 08:24:30
computing, personal area network, PAN, networking
According to ICT Results in ‘The Network of Everything,’ wireless experts estimate that our personal networks will include about a thousand devices in 2017, including dozens of sensors checking our health and our home. This is why European researchers have launched in 2006 a networking project called ‘MAGNET Beyond.’ The name is an acronym for ‘My personal adaptive Global NET and beyond.’ The article suggests that the researchers have in fact built the Smart Personal Network, which integrates the concepts of Personal Networks (PNs) and Personal Area Networks (PANs).
But first, where does this number of a thousand devices in a personal network come from? “In reality, it is hard to know what kind of devices or technology might be around for sure, but one thing is certain… there will be a lot of them. Hence the Wireless World Research Forum’s (WWRF) prediction of 7 trillion devices for 7 billion people by 2017 — in other words, around a thousand devices for every man, woman and child on the planet.”
Source:
http://blogs.zdnet.com/emergingtech/?p=1094
Wednesday, 20. August 2008, 10:02:31
cloud computing, networking, internet
recently, Intel, Yahoo, HP, and an international trio of research institutions announced a joint cloud-computing research initiative. The ambitious six-site project is aimed at developing an Internet-based computer infrastructure stable enough to host companies' most critical data-processing tasks. The project also holds an unusual promise for advances in fields as diverse as climate change modeling and molecular biology.
The new array of six linked data centers, one operated by each project sponsor, will be one of the largest experiments to date focusing on cloud computing--an umbrella term for moving complex computing tasks, such as data processing and storage, into a network-connected "cloud" of external data centers, which might perform similar tasks for multiple customers.
Source:
http://www.technologyreview.com/Infotech/21180/?a=f
Thursday, 24. July 2008, 07:07:05
chalcogenide, chip technology, photonics, networking
...
University of Sydney physicists have developed an optical chip that could potentially improve ‘Internet speeds to up to 100 times faster than current Australia’s networks.’ According to the Sydney Morning Herald, these chalcogenide glass photonic chips will be very cheap to produce as they’re based on plain glass.
As the lead researcher said, ‘we are talking about networks that are potentially up to 100 times faster without costing the consumer any more.’ He adds that these chips could be scaled to operate at data rates approaching 640 Gb/s — the equivalent to transmitting approximately 17 complete DVDs per second! These chips could be commercially available in 5 years with the possible first network deployments in Japan.
This research project has been led for 4 years by Professor Ben Eggleton, Director of the Centre for Ultrahigh bandwidth Devices for Optical Systems (CUDOS) at the University of Sydney.
Source:
http://blogs.zdnet.com/emergingtech/?p=977
Thursday, 12. June 2008, 08:17:53
Worms, security, networking, internet
Scientists may have found a new way to combat the most dangerous form of computer virus. The method automatically detects within minutes when an Internet worm has infected a computer network.
Network administrators can then isolate infected machines and hold them in quarantine for repairs.
Ness Shroff, Ohio Eminent Scholar in Networking and Communications at Ohio State University, and his colleagues describe their strategy in the current issue of IEEE Transactions on Dependable and Secure Computing.
They discovered how to contain the most virulent kind of worm: the kind that scans the Internet randomly, looking for vulnerable hosts to infect.
Source:
http://www.sciencedaily.com/releases/2008/06/080604143419.htm
Tuesday, 22. April 2008, 07:52:43
web, networking, internet
You're trying to log on to a Web site and it's not working. You try again and again. But persistence doesn't pay off. The site you want is inexplicably, frustratingly, out of reach.
The other computer might just be turned off, but the causes could be more mysterious. At any given moment, a proportion of computer traffic ends up being routed into information black holes. These are situations where a path between two computers does exist, but messages -- a request to visit a Web site, an outgoing e-mail -- get lost along the way.
A University of Washington system named Hubble looks for these black holes and maps them on a Web site, providing an ever-changing constellation of the Internet's weak points.
Source:
http://uwnews.org/article.asp?articleID=40871
Monday, 16. April 2007, 15:53:05
wireless, networking
Researchers at the University of Utah have found a way to control terahertz radiation with more precision than ever before, potentially laying the foundation for a new breed of wireless devices that can take advantage of the previously untapped frequencies.
Although still years from commercialization, routers and receivers that use terahertz radiation--which technically ranges from about 100 gigahertz to 10 terahertz--could eventually pack more data onto airwaves, speeding up wireless Internet links a thousand times, says Ajay Nahata, a professor of electrical and computer engineering who led the research.
Nahata and his team designed a perforated stainless steel film that is able to selectively allow certain terahertz frequencies to pass through and cancel out others. In effect, the researchers have built a simple terahertz filter, a potential precursor to terahertz communication devices.
Source:
http://www.technologyreview.com/Infotech/18475/
Wednesday, 11. April 2007, 09:08:30
blutooth, networking
The Bluetooth Special Interest Group has officially unveiled Bluetooth 2.1, the latest evolution of the Bluetooth spec. Its full name—Bluetooth Core Specification Version 2.1 + EDR—may be a mouthful, but the improvements over its predecessor are a couple of tasty bites.
Fully backwards compatible with Bluetooth 2.0, version 2.1 offers lower power consumption and an improved device pairing experience. A new feature called "sniff subrating" optimizes battery life, which the Bluetooth SIG claims can result in a five-fold increase in battery life for peripherals including keyboards, mice, medical devices, and watches.
Source:
http://arstechnica.com/news.ars/post/20070402-new-bluetooth-spec-promises-easier-pairing-lower-power-consumption.html
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