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Researchers at Eindhoven University of Technology (TU/e) in the Netherlands and the University of Central Florida (CREOL) in the USA, report in the journal Nature Photonics the successful transmission of a record high 255 Terabits/s over a new type of fibre allowing 21 times more bandwidth than currently available in communication networks (Abstract). This new type of fibre could be an answer to mitigating the impending optical transmission capacity crunch caused by the increasing bandwidth demand.
[Car Analogy]: The new fibre has seven different cores through which the light can travel, instead of one in current state-of-the-art fibres. This compares to going from a one-way road to a seven-lane highway. Also, they introduce two additional orthogonal dimensions for data transportation – as if three cars can drive on top of each other in the same lane. Combining those two methods, they achieve a gross transmission throughput of 255 Terabits/s over the fibre link. This is more than 20 times the current standard of 4-8 Terabits/s.
(Score: 2) by kaszz on Monday October 27 2014, @05:50PM
Wasted bandwidth? the classic is a console session where every byte typed results in 40 bytes sent in a packet. IPv6 will make this even worse. Streaming sessions (like Netflix) that makes use of parallel unicasts instead of multicast. The same effect happens for the same movie (or file) downloaded by different users. Backup over network or low latency.
So in some cases more transmission capacity makes sense. In many other cases it's just a symptom of wasted capacity by badly designed usage pattern.
(Score: 2) by frojack on Monday October 27 2014, @06:41PM
How does one "waste" capacity.
Wasting capacity is leaving it underutilized on the off chance that in the future something might come along and use that fiber which just happens to meet with the approval of kaszz. Every minute you are not pushing everything you can through the fiber it is being wasted.
Want to get rid of that 40 bytes of over head? String point to point cables to and from every origin to every destination. Single use, zero contention, and each cable wasted 99.9999% of the time when nothing happens be be traveling on it.
Packaging and transport of data does not "waste" fiber. It fulfills its very raison d'etre.
No, you are mistaken. I've always had this sig.
(Score: 2) by kaszz on Monday October 27 2014, @09:58PM
Waste is when applications force or invites to usage that can be done on a local basis without huge penalty. This may lead to more expensive investment in infrastructure that has to be amortized by all users in the end. It usually also increases complexity and thus decrease reliability.
(Score: 2) by frojack on Monday October 27 2014, @10:33PM
Don't believe you will find any justification for that definition.
Even in the present discussion, every time something like netflics eliminates hopping in the car to go get a movie, or getting a movie in the mail on use-once plastic, delivered by a vehicle with a internal combustion engine, which has to be returned, only to be discarded, that is systemic waste.
Spending a small amount of electricity to transmit that electronically is the perfect antithesis of waste.
No, you are mistaken. I've always had this sig.
(Score: 2) by kaszz on Tuesday October 28 2014, @04:28AM
Make streaming services coordinate transmissions so it isn't a 1:1 resource usage. Divide transmissions into video positions that many receivers share and cache at receiver. The waste comes when using the packet network as broadcast setup.