Telecom and Networking

Scientists Have Managed To Store Light As Sound For The First Time | IFLScience

http://www.iflscience.com/technology/scientists-have-managed-to-store-light-as-sound-for-the-first-time/ A team of researchers from the University of Sydney has managed to convert the digital information carried by light waves into sound waves inside a microchip. As reported in Nature Communications, the researchers were able to build a chip that slows down light by turning it into sound waves. “The information in our chip in acoustic

DIY optical power meter with SFP module and Arduino idea

Fifer optics power meter is an important tool for debugging fiber optics networks. I have earlier tested a cheap commercial fiber optic power meter a at Fiber optics power meter posting. Hardware hackers ares famous for building their own test equipment. The basic operation of optical power meter is quite simple: take a suitable detector,

Five technologies for building 5G | EDN

http://www.edn.com/electronics-blogs/5g-waves/4458807/Five-technologies-for-building-5G?utm_content=buffer90279&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer 5G is widely considered a mobile technology that won’t be available until perhaps 2020 or 2021, and even then, not widely.  Cisco predicts that by 2021, a 5G connection will generate 4.7 times more traffic than the average 4G connection. 5G will be a quantum leap from today’s LTE-Advanced networks. 

On link modeling, network emulation and its impacts on applications – RHD Blog

https://developers.redhat.com/blog/2017/08/31/on-link-modeling-network-emulation-and-its-impacts-on-applications/?sc_cid=7016000000127ECAAY In every packet-switched network, you will notice characteristics that are intrinsic to them and that varies depends on the communication channels being used. Such characteristics are bandwidth, delay (including jitter), packet loss, packet corruption and reordering. Linux has the tc queue discipline ‘netem’ for quite some time now. Netem is capable of emulating all

Gigabit wireless begins to take hold | EDN

http://www.edn.com/electronics-blogs/5g-waves/4458773/Gigabit-wireless-begins-to-take-hold?utm_content=buffer45e8b&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer At the beginning of last week, Ericsson and Qualcomm achieved a transmission rate just a bit faster than 1 Gbps on Verizon’s commercial 4G LTE network. Ericsson, Qualcomm, and Verizon claim to be the first to have achieved 1 Gbps using commercial silicon and commercial infrastructure. 

New posting category for 5G communications

I have created a new category for 5G telecommunications technology topics. New postings related to 5G technologies will be posted under this category. I have also tried to tag older postings related to 5G to this 5G category. 5th generation mobile networks or 5th generation wireless systems, abbreviated 5G, are the proposed next telecommunications standards

High-Dimensional Quantum Encryption Performed in Real-World City Conditions for First Time

http://www.osa.org/en-us/about_osa/newsroom/news_releases/2017/high-dimensional_quantum_encryption_performed_in_r/ For the first time, researchers have sent a quantum-secured message containing more than one bit of information per photon through the air above a city. The demonstration showed that it could one day be practical to use high-capacity, free-space quantum communication to create a highly secure link between ground-based networks and satellites, a requirement

How to set up an all open-source IT infrastructure from scratch

https://www.networkworld.com/article/3217713/open-source-tools/how-to-set-up-an-all-open-source-it-infrastructure-from-scratch.html Hypothetical: You need to set up the IT infrastructure (email, file sharing, etc.) for a new company. No restrictions. No legacy application support necessary. How would you do it? What would that ideal IT infrastructure look like? This presents writer’s ideal setup based on open source software.

Taking Down the Internet Has Never Been Easier

http://www.darkreading.com/vulnerabilities—threats/taking-down-the-internet-has-never-been-easier/a/d-id/1329580 Is there a reason why the Internet is so vulnerable? Actually, there are many, and taking steps to remain protected is crucial. On October 29, 1969, two computers linked via telephone exchanged a couple of letters, then crashed.  Fast-forward 48 years, where everything — including the kitchen sink, in the case of smart kitchens — is