Thursday, 9. August 2007, 11:33:16
Wi-Fi, communications, Networks
There are two ways to look at the explosive growth of the Internet: One is to celebrate the fact that in the 15 years since it became commercially available, what began as an obscure military technology morphed into a global phenomenon that is regularly accessed by over a billion people. The other is to ask why the world's other five billion folks aren't online yet.
Enter Meraki. Meraki Networks, Inc., is a three-year-old company headed by Sanjit Biswas, a polite and bespectacled Massachusetts Institute of Technology student-cum-CEO on permanent hiatus from the pursuit of a doctoral degree in computer science.
Biswas says his goal, and that of Meraki, is to "connect the next billion people." Biswas and his engineers are almost exclusively programmers, yet Meraki doesn't sell software. Instead it sells Wi-Fi hardware—relatively cheap, commodity hardware built by outside vendors. It's a combination of this hardware and Meraki's software that yields a kind of magic that Biswas believes will go viral the way few things have.
Source:
http://www.sciam.com/article.cfm?chanID=sa025&articleID=38462CAE-E7F2-99DF-321E78970AEB35C0
Wednesday, 20. June 2007, 10:34:36
Wi-Fi, mobile communications
Everyday, our cars are using more computing technology, primarily for safety reasons. So why not turning them into computer nodes of a mobile network? This is what UCLA engineers are working on. According to them, this would just need the relatively low-cost addition of sensors to the vehicle’s roof and bumpers.
They say their mobile ad-hoc networking platform (MANET) would allow ‘moving vehicles within a range of 100 to 300 meters of each other to connect and create a network of cars.’ Of course, not every driver would like to be part of this network because of privacy concerns. This is why ‘the first mobile networks will be implemented in emergency response vehicles such as police cars, ambulances and hazardous materials response units.’
Source:
http://blogs.zdnet.com/emergingtech/?p=593
Tuesday, 13. March 2007, 09:41:43
mobile communications, Wi-Fi
How'd you like just one phone number -- and phone -- for home, office, and mobile? Chicago-based BridgePort Networks officiated at the long-heralded marriage of cellular networks and Wi-Fi -- which could mean cell phones that never drop calls inside buildings, where Wi-Fi is the cheaper and more reliable system.
At conferences in Barcelona and Las Vegas, BridgePort showcased new phones from Chinese manufacturer E28 that carry both a standard cellular radio and a Wi-Fi radio. When attendees wandered out of the Wi-Fi transmitter's range, the call switched to the cellular network.
Source:
http://www.technologyreview.com/read_article.aspx?ch=specialsections&sc=personal&id=16794
Tuesday, 19. December 2006, 11:46:23
mobile communications, Networks, Wi-Fi
Introducing a new wireless standard, called by some “WiFi on steroids,” the IEEE 802:16 standard is the next level of wireless broadband Internet connectivity. The standard is fast being adopted and is being integrated into the next generation of mobile phone technology with Samsung, Intel, and Nokia developing the necessary hardware to run on the new standard.
3G (third generation) mobile technology introduced "always on" Internet access for mobile devices. WiFi brought hot spots where congregations of Internet users logged on. WiMax will allow even larger areas to become accessible to cheap broadband Internet connections at high frequencies.
Source;
http://www.devhardware.com/c/a/Networking-Hardware/WiMax-the-New-Wireless-Standard/
Friday, 6. October 2006, 14:27:46
electronics, Home, network, User Interface
...
The day isn’t far off when it will be possible to control all home communications and automation systems by using a single wearable device that recognizes voice commands. For the CeBIT fair this year, Siemens developed such a small multi-talented communications device.
It can be worn like a badge or pin on an article of clothing. The commands are transmitted via the Bluetooth short-range digital radio standard to a central home communications server. The server is equipped with voice recognition software, which converts the words into unambiguous commands for the hooked-up systems.
Source:
http://www.siemens.com/index.jsp?sdc_p=cz3su20o1253684pFEnflmi1188523&sdc_sid=8568495147&sdc_bcpath=1189122.s_0%2C&
Saturday, 9. September 2006, 09:37:49
Networks, Wi-Fi, communications
Across the border from Chinese-occupied Tibet, the tech infrastructure in this high mountain village is a mess.
But a former Silicon Valley dot-commer and members of the underground security group Cult of the Dead Cow are working with local Tibetan exiles to change that using recycled hardware, solar power, open-source software and nerd ingenuity.
The volunteers are building a low-cost wireless mesh network to provide cheap, reliable data and telephony to community organizations.
Source:
http://www.wired.com/news/technology/0,71608-0.html?tw=wn_index_1
Wednesday, 16. August 2006, 09:02:23
Networks, Wi-Fi, security
Some computers with wireless internet capabilities are vulnerable to attacks that could expose passwords, bank account details and other sensitive information even if the machines aren't actually online, researchers say.
The researchers demonstrated the vulnerability at a computer-security conference in Las Vegas on Wednesday, showing how to take complete control of a MacBook from Apple Computer.
But the two researchers, David Maynor, 28, and Jon Ellch, a 24-year-old who prefers to go by his hacker handle Johnny Cache, said the technique will work on an array of machines, including those that run Microsoft's Windows and the free Linux operating system.
Source:
http://www.smh.com.au/news/wireless--broadband/hacker-exposes-security-flaw-in-wireless-computers/2006/08/03/1154198254214.html
Tuesday, 15. August 2006, 10:36:19
internet, network, Wi-Fi
Bruce Baikie and Marc Pomerleau are putting an earth-friendly spin on wireless networks.
Their nonprofit organization,
Green Wi-FI, is trying to bring Internet access to schools in developing countries via cheap, solar-powered Wi-Fi networks. The newly formed venture came out of a wish to which many parents can relate: showing their kids there's more to life than the daily grind of corporate politics.
The technical concept behind the Green Wi-Fi network is fairly simple. Each node in the network consists of a battery-powered router and a solar panel to charge the battery. The nodes are mounted on rooftops, and the network's Wi-Fi signals are transferred over a grid using a wireless network standard known as 802.11b/g.
Source:
http://news.com.com/Closing+the+digital+divide+with+solar+Wi-Fi/2100-11395_3-6101071.html?tag=cd.top
Monday, 22. May 2006, 08:45:12
mobile communications, Networks, Wi-Fi
Well here it is the in-depth analysis of the new Wireless Mobile Phone Global network.
In this article we will compare and analyze the competing wireless technologies available. Also included is the background to this systems development, a basic how-to guide to build the infrastructure, IP mobility, the finances behind it, the OS, services, handset features, connectivity, storage Devices, and security (including preventing packet fraud).
As a bonus, the legal framework behind the system is also included. Finally, a section entitled 'The Ultimate Legal Precedent in US History', clearly explains why the US telecommunications industry is unconstitutional and cite, no less than, 16 breaches of The First Amendment to the US Constitution.
Source:
http://live.communitywireless.org/modules.php?op=modload&name=News&file=article&sid=10&mode=thread&order=0&thold=0
Monday, 24. April 2006, 16:35:21
Networks, technology, Wi-Fi
Atop each of the Trump towers in New York City, there's a new type of wireless transmitter and receiver that can send and receive data at rates of more than one gigabit per second -- fast enough to stream 90 minutes of video from one tower to the next, more than one mile apart, in less than six seconds. By comparison, the same video sent over a DSL or cable Internet connection would take almost an hour to download.
Source:http://www.technologyreview.com/InfoTech/wtr_16409,258,p1.html
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