Tag: terabytes

The Future is Here: Pure LiFi Wireless Internet

lifi_internet1It’s known as “Light Fidelity”, a new form of wireless data transmission that does away with radio signals in favor of optics. And much like the concept of an optic computer – which uses photons to transfer and store information rather than electrons – it’s long been considered as the next possible leap in internet technology. Hence why it was being demonstrated at this year’s Mobile World Congress – the world’s largest exhibition for members of the mobile phone, internet and IT industry.

Despite its monumental growth in the last decade, Wi-Fi remains somewhat hindered by the fact that it relies on microwaves in the 2.4 GHz and 5 GHz bands, a radio spectrum which is limited. LiFi, however, relies on the transmission of light and could be deployed in everyday LED bulbs, covering the entire interior of a home or office. These LED bulbs would send information out in what appears to be a constant stream of light, but which is actually made up of millions of micropulses a second.

Mobile-World-Congress-MWC-PreviewA system based on this would be capable of transferring far larger bundles of data than one based on microwaves. The system that was on display at MWC this year ran at 150 Mbps. But with a more powerful LED light, it could conceivably reach a rate of transfer equal to 3.5 gigabytes per second. That’s 210 gigabytes a minute, and 12.6 terabytes (that 12 and a half trillion bytes, people!) every hour, far in advance of what current WiFi offers (which maxes out at 450 mbps).

To put that in perspective, as of March 2014, the US Library of Congress estimated that their web had cataloged 525 terabytes of web archive data, with an addition 5 terabytes added every month. This means that a LiFi connection running at full capacity transfers in one hour what the Library of Congress processes in over two months! In short, the widespread use of LiFi would mean an explosion in information the likes of which has not been seen since the internet first went online.

Pure_LiFi_MWC2014Granted, there are still some limitations, like how any computer running off of LiFi needs a special adapted, and interrupting the light source will cause information transfers to cease. And I can’t help but wonder what micropulsing lights will do for people with epilepsy, not to mention the rest of us. However, such concerns are likely to be addressed long before LiFi sees any adoption on a grand scale, which is likely still a decade away at this point.

This year, the MWC conference took place in Barcelona, a place committed to the concept of the Internet of Everything (IoE) and the building of the world’s first truly “smart city”. In the coming months and years, I anticipate that this Spanish haven for technological innovation and integration will feature plenty of LiFi. So if you’re traveling there, you might want to look into getting an adapter for your laptop.

And in the meantime, enjoy this video – courtest of CNET First Look – that takes a look at this year’s LiFi demonstration at MWC 2014:


Sources: news.cnet.com, loc.gov

Cyberwars: NSA Building Quantum Computer

D-Wave's 128-qubit quantum processorAs documents that illustrate the NSA’s clandestine behavior continue to be leaked, the extents to which the agency has been going to gain supremacy over cyberspace are becoming ever more clear. Thanks to a new series of documents released by Snowden, it now seems that these efforts included two programs who’s purpose was to create a ““useful quantum computer” that would be capable of breaking all known forms of classical encryption.

According to the documents, which were published by The Washington Post earlier this month, there are at least two programs that deal with quantum computers and their use in breaking classical encryption — “Penetrating Hard Targets” and “Owning the Net.” The first program is funded to the tune of $79.7 million and includes efforts to build “a cryptologically useful quantum computer” that can:

sustain and enhance research operations at NSA/CSS Washington locations, including the Laboratory for Physical Sciences facility in College Park, MD.

nsa_aerialThe second program, Owning the Net, deals with developing new methods of intercepting communications, including the use of quantum computers to break encryption. Given the fact that quanutm machinery is considered the next great leap in computer science, offering unprecedented speed and the ability to conduct operations at many times the efficiency of normal computers, this should not come as a surprise.

Such a computer would give the NSA unprecedented access to encrypted files and communications, enadling them to break any protective cypher, access anyone’s data with ease, and mount cyber attacks with impunity. But a working model would also vital for defensive purposes. Much in the same way that the Cold War involved ongoing escalation between nuclear armament production, cybersecurity wars are also subject to constant one-upmanship.

quantum-computers-The-Next-GenerationIn short, if China, Russia, or some other potentially hostile power were to obtain a quantum computer before the US, all of its encrypted information would be laid bare. Under the circumstances, and given their mandate to protect the US’s infrastructure, data and people from harm, the NSA would much rather they come into possesion of one first. Hence why so much attention is dedicated to the issue, since whoever builds the worlds first quantum computer will enjoy full-court dominance for a time.

The mathematical, cryptographical, and quantum mechanical communities have long known that quantum computing should be able to crack classical encryption very easily. To crack RSA, the world’s prevailing cryptosystem, you need to be able to factor prime numbers — a task that is very difficult with a normal, classical-physics CPU, but might be very easy for a quantum computer. But of course, the emphasis is still very much on the word might, as no one has built a fully functioning multi-qubit quantum computer yet.

quantum-entanglement1As for when that might be, no one can say for sure. But the smart money is apparently anticipating one soon, since researchers are getting to the point where coherence on a single qubit-level is becoming feasible, allowing them to move on to the trickier subject of stringing multiple fully-entangled qubits together, as well as the necessary error checking/fault tolerance measures that go along with multi-qubit setups.

But from what it’s published so far, the Laboratory for Physical Sciences – which is carrying out the NSA’s quantum computing work under contract – doesn’t seem to be leading the pack in terms of building a quantum computer. In this respect, it’s IBM with its superconducting waveguide-cavity qubits that appears to be closer to realizing a quantum computer, with other major IT firms and their own supcomputer models not far behind.

hackers_securityDespite what this recent set of leaks demonstrates then, the public should take comfort in knowing that the NSA is not ahead of the rest of the industry. In reality, something like a working quantum computer would be so hugely significant that it would be impossible for the NSA to develop it internally and keep it a secret. And by the time the NSA does have a working quantum computer to intercept all of our encrypted data, they won’t be the only ones, which would ensure they lacked dominance in this field.

So really, thess latest leaks ought to not worry people too much, and instead should put the NSAs ongoing struggle to control cyberspace in perspective. One might go so far as to say that the NSA is trying to remain relevant in an age where they are becoming increasingly outmatched. With billions of terabytes traversing the globe on any given day and trillions of devices and sensors creating a “second skin” of information over the globe, no one organization is capable of controlling or monitoring it all.

So to those in the habit of dredging up 1984 every time they hear about the latest NSA and domestic surveillance scandal, I say: Suck on it, Big Brother!

Source: wired.com

Visualizing the Internet

Submarine fiber optic cables around the worldOrdinarily, when one talks about visualizing cyberspace, they think of massive neon-structures or cityscapes made up of cascading symbols of data. While these images – the creation of writers like William Gibson and film makers like the Waschowski Brothers – are certainly visually appealing, they are not exactly realistic, and hardly do the real thing justice.

Thankfully, a recent article over at policymic has presented us with a new and interesting way of visualizing this thing we call the World Wide Web. By compiling images of the various deep-sea cables that allow us to transmit information at the speed of light, author Laura Dimon reminds us that while the internet may be made up of trillions of bits of data moving about at any given moment, it is dependent upon real-world physical connections.

Submarine Cable Map 2012And these connections are extensive, with more than 550,000 fiber optic cables running along the ocean floor that are responsible for transmitting trillions upon trillions of interactions per day. According to the Washington Post, these cables “wrap around the globe to deliver emails, web pages, other electronic communications and phone calls from one continent to another.”

But surprisingly, few people seem to truly appreciate this. In an age of WiFi where more and more networks are being added to our public airwaves every day, the perception that all this information is something ethereal seems to have become rooted. Luckily, real-world events – such as the severing of several Seacom cables off the coast of Alexandria back in March – have managed to remind people just how grounded and potentially vulnerable the internet is.

Global Internet Map 2012Given our immense and increasing reliance on the internet for business, personal communications, entertainment and shopping, one would that we as a people would possess at least a passing knowledge of how it works. But as Eric Schmidt, Google’s executive chair, claimed in his book The New Digital Age: “The internet is among the few things humans have built that they don’t truly understand.”

Luckily, Laura provides a breakdown in her article which is a good start:

It consists of tens of thousands of interconnected networks run by service providers, individual companies, universities, and governments. There are three major parts to its construction: the networks that physically connect to each other (with about 12 that are particularly significant); the data-storing centers; and the architecture that lies in between. That is where it gets really interesting.

Global Internet Map 2011And just in case this doesn’t provide a clear picture, there are numerous images that have been created by organizations like Telecom Maps and The Fiber Optic Association. These show just how immense, extensive, and crisscrossed the cables that bring us all our emails, videos, blog feeds, and ability to surf are.

In addition, they also remind us that the historic gap between the developed and underdeveloped world persists into the information age. For every network of cables, there are cable landing stations that connect the deep sea lines to the continent they are servicing. As the maps show, Europe has more international network capacity than any other world region.

Global Voice Traffic Map 2010

They also remind us that the once undisputed technological supremacy of the United States has been slowly eroding as humanity enters the 21st Century. This has been especially apparent within the last decade, where localized service providers have eschewed the US as a central hub and begun to connect their networks to other countries and regions.

Fascinating, and educational. I hope someday to be able to use these sorts of visualizations in the classroom, as a means of letting students know what enables all their surfing habits. I imagine most of them will be surfing on their smartphones as I speak!

Sources: policymic.com, telegeography.com, thefoa.org