Future of Broadband: Where Data Is Broadcast Using Desk Lamps

In the future, getting a broadband connection might be as simple as flipping on a light switch. In fact, according to a group of researchers from Germany, the light coming from the lamps in your home could one day encode a wireless broadband signal.

As of now, the majority of wireless in homes and businesses is achieved through a radio-frequency WiFi connection. But WiFi has limited bandwidth, and it’s unclear where to find more in the already-crowded radio spectrum. By contrast, visible-frequency wireless has all the bandwidth one could want.

The signal would be generated in a room by slightly flickering all the lights in unison. No one would be bothered by this because the rate of modulation would be millions of times faster than a human eye can see. Since visible light can’t go through walls like radio, there would be no unwanted interference from stray signals and less worry of outside hackers. Continue reading.

Related Posts

Lest CodePlex perplex by Richard M. Stallman: Many in our community are suspicious of the CodePlex Foundation. With its board of directors dominated by Microsoft employees ...
Open Source and Computer Science Education In his March 2006 column in the Communications of the ACM, ACM President David Patterson urged Computer Science (CS) educators to "Join the open sourc...
How to Fight Government Spying Is the government spying on you? Want to do something about it? Right, bet you do. The Electronic Frontier Foundation (EFF) has a number of solutions...
A Practical Guide to GPL Compliance The Linux kernel, and most of the software that makes it usable are governed by the GPL, or the GNU General Public License. Now at version 3 (GPLv3), ...
SSD’s, Journaling, and noatime/relatime On occasion, you will see the advice that the ext3 file system is not suitable for Solid State Disks (SSD’s) due to the extra writes caused by journal...
Putting the “Public” In Publicly-Funded Research By Corynne McSherry: Sometimes an idea is so blindingly, obviously good that you have to wonder why it hasn’t already been implemented. A few years...

We Recommend These Vendors and Free Offers

Launch an SSD VPS in Europe, USA, Asia & Australia on Vultr's KVM-based Cloud platform starting at $5:00/month (15 GB SSD, 768 MB of RAM).

Deploy an SSD Cloud server in 55 seconds on DigitalOcean. Built for developers and starting at $5:00/month (20 GB SSD, 512 MB of RAM).

Want to become an expert ethical hacker and penetration tester? Request your free video training course of Online Penetration Testing and Ethical Hacking

Whether you're new to Linux or are a Linux guru, you can learn a lot more about the Linux kernel by requesting your free ebook of Linux Kernel In A Nutshell.


Leave a Comment

Your email address will not be published. Required fields are marked *

*