Radical new idea
Oh, hang on...didn't my old mobile phone about 15 years ago have an option to communicate via infra-red? OK, not at 43Gbps maybe...
And aren't there line-of-sight issues?
In five years or so, Wi-Fi access points could carry data at rates 100 times faster than today using infrared light rather than other portions of the electromagnetic spectrum. Researchers at Eindhoven University of Technology (TU/e) in the Netherlands have developed a way to use fiber optic cables, mounted with networking …
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IrDA and the like has indeed been around forever.
And site-to-site infrared / microwave systems too.
They have serious problems that stop them being used for anything other than consumer toys (IrDA way surpassed by Bluetooth, line-of-sight kills anything but use over your own land or free space).
Been trying to convince my employers to put in site-to-site-links but the only places that can "see" are in positions that would show the ugly, and they disapprove.
Instead, we spend £10k a year on a Virgin leased line and another £10k on a BT leased line at the other end (because no one supplier covers both areas... sigh). When I can see each building from the other. Just a shame we don't own all the land in-between because I'd just get them to chop down a couple of trees and problem solved.
We had IR comms before.
It's amazing how the sun rising in the morning can really balls things up...along with pigeons, leaves and people changing the street lights on a cherry picker.
If the link ever went down, it was standard practice to get on the roof with a pair of binoculars and see what was in the way.
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I might be wrong about these things, but I thought that if you modulate a given signal with a given bandwidth onto a carrier frequency you will occupy the spectrum around the carrier frequency equal to the bandwidth of the original signal. If I am correct about that, will it not be so that there is a lot more room around the higher frequency bands? So while it is true that higher frequency does not dictate higher data rates, it does indeed allow for it.
Take for example a signal of 1 MHz bandwidth. Transmitted on 2MHz it will occupy the area from 1.5MHz to 2.5MHz, a rather large part of the spectrum, effectively blocking out anything else from being transmitted at the same time. Shift it up to 1GHz on the other hand and you will occupy the spectrum from 0.9995GHz to 1.0005GHz, allowing for other signals to be transmitted nearby, or expanding the bandwidth of the signal in the first place.
Disclaimer, I am unsure if I remember these things correctly so please correct me if I am wrong.
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that moves around and emits a whole shed load of IR through to UV and beyond?
Namely the Sun.
In a darkend room or deep underground etc yes this might work but outside in the real world with the Sun and a whole host of other IR light sources this would at first glance have very limited applications.
Perhaps after the Yellowstone Caldera blows its top and the dregs of humanity that are left and have to live without the sun and clear skies dor possible decades then this might work.
Skeptic is my middle name.
"...that moves around and emits a whole shed load of IR through to UV and beyond?"
Seriously? Have you never wondered how IR remote controls manage to work in the daytime when there's that 'thing in the sky', even though you may not have closed your curtains or blinds?
Could be handy to get a network up and running to get a revenue stream in place before a more permanent solution is put in place or where a fast temporary fix is needed say, across a major bridge/road, where a cable has been damaged, and there would be inherent dangers, using other methods.
Could help in the rollout of rural broadband, but I doubt it will be cheap, as in as cheap as stringing a temporary fibre cable between two points.
If Germany goes ahead with its Euro 100Bn investment in Fibre / 5G + other Countries, fibre itself is going to get a whole lot cheaper over the next 5 years, aswell more refined, cheaper tried and tested methods of installation.
If you can attach a seemingly-harmless IR transmitter to someone's network, you can transmit content to a remote location within line of sight . . . for example from one colocated data center cage to another or from one high-rise, glass-enclosed building to another. Given that it's point-to-point line-of-sight, it should be largely undetectable by conventional means. You could potentially also use it for regular networking under similar conditions, where you have physically proximate but separated sites. There could also be use cases where RF interference is not desirable but wireless connectivity is. Not everyone will find the technology useful, but there do seem to be specialist applications possible for it.
Who the heck needs 42 Gbps wifi? Heck, who really needs 420 Mbps wifi? Same as the objection for who really needs gigabit broadband to their home - no one except a narrow portion of people who work with truly massive files, like CAD engineers working from home. We have maxed out the input our senses can handle with high quality streaming video, and even Blu Ray quality 4K is only 100 Mbit (as if we'll ever be getting that level of quality from Netflix or Amazon Prime) The problem people have with wifi today isn't the 3 Gbps theoretical speed, it is that it is like 1-2% of that speed when you have to go through a few walls. Infrared requires line of sight, so it won't help you there.
I could see this being useful for lets say an army brigade during war sets up a new HQ, and has a bunch of computers. Rather than running fiber everywhere in a room that wasn't designed to be a datacenter, just put like IR "antennas" on top of each rack.
I wonder if an IR base station would drown out your ability to use the remote control for your TV?
Who the heck needs 42 Gbps wifi? Heck, who really needs 420 Mbps wifi?
Well for one use case, when I'm doing backups at home I try and plug the laptops into a wired network - it makes a VAST difference to backup speeds. It's not just the raw speed, it's the latency as well - there's a lot of round trip exchanges in determining which files needs copying.
If your backups took 5 minutes instead of 50 minutes, what difference would that make to you? You aren't waiting on them, they're taking place in the background. Sure, better round trip latency would be nice but TCP ACK packets are tiny, and a lot of that latency is in the network stacks of the endpoints, so you won't improve your latency by much at all via speeding up the link.
As far as stuff YOU have to wait on, or things such speeds would enable you to do that you can't do now, what is there? I ask this question all the time, and aside from the unimaginative folks quoting "640K should be enough for anyone" at me, I've never heard anyone come up with a reason why we need more than a gigabit into the home, or between any two devices in the home.
The reason we've demanded more and more speed is because it has enabled us to spend less time waiting on our computer for e.g. web pages to load, or to get denser sensory data (i.e. going from text to GIF to MP3 to 2005 era YouTube to 4K streaming today) but we've maxed out the richness of input possible to our senses.
Going from a gigabit to 10 gigabit, for instance, the loading time for a 5 MB web page would improve from 50 ms to 5 ms - while you could notice that, it wouldn't improve your experience any. Of course, we all know such pages don't load in 50 ms on a gigabit link, or even 500 ms. Because of all the back forth traffic, slow ad servers and what not it takes seconds. A faster link won't make any difference.
So aside from hand wavey "maybe someday someone figures out how to do a Star Trek like holodeck, which takes 10 Gbps" are there any real world use cases that demand faster than a gigabit? Things that make a measurable difference in your user experience, not "if I set down my laptop right before bed, it can finish its backup before I even fall asleep, rather than not finishing until I've entered my first REM sleep".
People are always resistant to the idea that we've hit a wall for homes (well not those who are still at 50 Mbps or whatever, but places where you can get a gigabit) where faster speeds aren't needed, and there's no reason for 10 Gbps ethernet to come to homes, either. They've been so used to networks getting faster and faster, and more data being used, that they assume it will continue forever. It won't. There has to be a use case driving it, it isn't "build it and they will come".
The same thing happened with PC CPUs almost a decade ago. Everyone was used to CPUs getting faster and faster, and assumed they always needed a faster CPU, until they pretty much stopped getting faster. How much faster are today's fastest PC CPUs compared to ones almost a decade ago with the first "Core i3/5/7" CPUs? Not even close to twice as fast in single thread CPU. They are still quad core at the high end of typical desktops today, just like they were back then. But it doesn't matter - if you could get a CPU 5x as fast as what you have now, but had to give up your SSD and go back to a hard drive, unless you're an idiot, you'll keep your SSD.
Rephrase it another way Doug, what problem does this cause you that you can write paragraphs and praragraphs rebutting the usefulness of it. Why *shouldn't* we have faster wifi? Can you think of *no* situation where faster wifi would be an economic benefit?
Here's a hint: its not always about home networking, individual computers or loading a web page. There are people out there who do different things with networks than you! Please don't faint in shock.
"if you could get a CPU 5x as fast as what you have now, but had to give up your SSD and go back to a hard drive, unless you're an idiot, you'll keep your SSD."
So why did we develop SSD's surely a 7200rpm disk is way more than a consumer needs. You never need enterprise speeds of 15K
If your backups took 5 minutes instead of 50 minutes, what difference would that make to you? You aren't waiting on them, they're taking place in the background.
Well it's actually the difference between fraction of an hour and "hours" - so yes it is a significant difference in time.
And yes I am waiting on them. At present they tie up my laptop - I can use it, but while it's running backups it's "a bit sluggish". When I manage to clear the significant list of things that require a dip into my "far from infinite" income then I'll be able to improve things (either a laptop that can have much more memory than this one supports, or a separate machine to run backups on, or both) - but at the moment that's not a "next week" timescale.
The other issue is how long the machine being backup up is on for. Sometimes it can be difficult persuading people to not shut the machine down before it's backup is finished.
There's no consumer use case for this
Sure there is. I would not have had to run a GigE in conduits to my workshop/shed. That is my "off-site" backup so WiFi just doesn ot cut it - you get at most 30-40Mbit at that distance which is just not enough to shovel the 40G or so of daily backup on a daily basis.
I get that This Just Sounds Outrageous.
I just spent a week getting all the details straight so we could get our new rack cabled and fibred up so we could spin up the hosts in that rack. Three of those days were spend just plain running cables/fibres between switches.
Is it not possible that say, having this wired up in the DC and connecting endpoints or even TOR switches to EOR switches might be worthwhile?
Hats. Better to use one made by a milliner rather than the one yer sitting on.
"In five years or so, Wi-Fi access points could carry data at rates 100 times faster than today using infrared light..."
This is a great idea, so long as the link is inside a building or if there isn't any snow or fog. Many decades ago, a similar link (not nearly as fast) connected the CU Boulder Engineering Building with the Computing Center approximately 2 miles away. Worked great until we had snow. Or rain. Or fog. The link completely dropped out then. IR doesn't like that. Sun didn't seem to matter, though.
Also, multiple sources pointed at a single IR transceiver will screw up. A (now long-dead) HP project used IR for a wireless hub. One serious problem was sources who were closer swamped traffic from those further away. HP never totally figured out the problems and so never released the product.
But boffins are so much cleverer these days! Nothing can go worng <tick> go worng <tick> go worng <tick> go worng <tick> go worng...
Cat videos at lightspeed - check
Pr0n at lightspeed - check
UHD pr0n at lightspeed - check
UHD 3d pr0n at lightspeed - check
Multiple simultaneous streams of holographically enhanced super UHD 4d cat pr0n at lightspeed - checking - er - er - ....
... Welcome to our new 802.11x. enhanced xray wifi overloards.
Hey, only 2 letters left. Time to develop a new standard. Anyone know the speed of a pigeon in a vacuum?
Nothing in the quantum hardware world is fully cooked yet, but quantum computing is quite a bit further along than quantum networking – an esoteric but potentially significant technology area, particularly for ultra-secure transactions. Amazon Web Services is among those working to bring quantum connectivity from the lab to the real world.
Short of developing its own quantum processors, AWS has created an ecosystem around existing quantum devices and tools via its Braket (no, that's not a typo) service. While these bits and pieces focus on compute, the tech giant has turned its gaze to quantum networking.
Alongside its Center for Quantum Computing, which it launched in late 2021, AWS has announced the launch of its Center for Quantum Networking. The latter is grandly working to solve "fundamental scientific and engineering challenges and to develop new hardware, software, and applications for quantum networks," the internet souk declared.
Multi-cloud networking startup Alkira has decided it wants to be a network-as-a-service (NaaS) provider with the launch of its cloud area networking platform this week.
The upstart, founded in 2018, claims this platform lets customers automatically stitch together multiple on-prem datacenters, branches, and cloud workloads at the press of a button.
The subscription is the latest evolution of Alkira’s multi-cloud platform introduced back in 2020. The service integrates with all major public cloud providers – Amazon Web Services, Google Cloud, Microsoft Azure, and Oracle Cloud – and automates the provisioning and management of their network services.
Cisco Live In his first in-person Cisco Live keynote in two years, CEO Chuck Robbins didn't make any lofty claims about how AI is taking over the network or how the company's latest products would turn networking on its head. Instead, the presentation was all about working with customers to make their lives easier.
"We need to simplify the things that we do with you. If I think back to eight or ten years ago, I think we've made progress, but we still have more to do," he said, promising to address customers' biggest complaints with the networking giant's various platforms.
"Everything we find that is inhibiting your experience from being the best that it can be, we're going to tackle," he declared, appealing to customers to share their pain points at the show.
A large chunk of the web (including your own Vulture Central) fell off the internet this morning as content delivery network Cloudflare suffered a self-inflicted outage.
The incident began at 0627 UTC (2327 Pacific Time) and it took until 0742 UTC (0042 Pacific) before the company managed to bring all its datacenters back online and verify they were working correctly. During this time a variety of sites and services relying on Cloudflare went dark while engineers frantically worked to undo the damage they had wrought short hours previously.
"The outage," explained Cloudflare, "was caused by a change that was part of a long-running project to increase resilience in our busiest locations."
NASA is finally ready to launch its unmanned Orion spacecraft and put it in the orbit of the Moon. Lift-off from Earth is now expected in late August using a Space Launch System (SLS) rocket.
This launch, a mission dubbed Artemis I, will be a vital stage in the Artemis series, which has the long-term goal of ferrying humans to the lunar surface using Orion capsules and SLS technology.
Earlier this week NASA held a wet dress rehearsal (WDR) for the SLS vehicle – fueling it and getting within 10 seconds of launch. The test uncovered 13 problems, including a hydrogen fuel leak in the main booster, though NASA has declared that everything's fine for a launch next month.
Mega, the New Zealand-based file-sharing biz co-founded a decade ago by Kim Dotcom, promotes its "privacy by design" and user-controlled encryption keys to claim that data stored on Mega's servers can only be accessed by customers, even if its main system is taken over by law enforcement or others.
The design of the service, however, falls short of that promise thanks to poorly implemented encryption. Cryptography experts at ETH Zurich in Switzerland on Tuesday published a paper describing five possible attacks that can compromise the confidentiality of users' files.
The paper [PDF], titled "Mega: Malleable Encryption Goes Awry," by ETH cryptography researchers Matilda Backendal and Miro Haller, and computer science professor Kenneth Paterson, identifies "significant shortcomings in Mega’s cryptographic architecture" that allow Mega, or those able to mount a TLS MITM attack on Mega's client software, to access user files.
Sometimes it takes research to prove what was already suspected, like how utterly uncomfortable it would be to work in the metaverse.
An international team of researchers conducted a study [PDF] to just such an end, putting participants in VR headsets and taking an inventory of their self-reported physical and mental states throughout a five day, eight-hour-a-day period spent in headsets and a virtual "office".
Unlike a real job, participants were allowed to set their own work agendas and didn't perform standardized tasks yet even still had trouble undertaking these.
Early details of the specifications for PCIe 7.0 are out, and it's expected to deliver data rates of up to 512 GBps bi-directionally for data-intensive applications such as 800G Ethernet.
The announcement from the The Peripheral Component Interconnect Special Interest Group (PCI SIG) was made to coincide with its Developers Conference 2022, held at the Santa Clara Convention Center in California this week. It also marks the 30th anniversary of the PCI-SIG itself.
While the completed specifications for PCIe 6.0 were only released this January, PCIe 7.0 looks to double the bandwidth of the high-speed interconnect yet again from a raw bit rate of 64 GTps to 128 GTps, and bi-directional speeds of up to 512 GBps in a x16 configuration.
The Wireless LAN market was battered by a choppy supply chain in the first quarter of 2022 and lockdowns in China are compounding the problem, according to analysis by Dell'Oro Group.
Many organizations have scheduled network upgrades, but supply is not able to keep pace with demand and backlogs are reportedly 10 to 15 times greater than they were pre-pandemic.
Several manufacturers have cited components from second and third-tier suppliers as the cause of the bottleneck, Dell'Oro said, which means that the problem may not be a shortage of Wi-Fi silicon, but rather of secondary components that are nevertheless necessary to make a complete product.
The UK's police service is set to spend up to £50 million ($62.7 million) buying hardware and software for a legacy communication network that was planned to become obsolete in 2019.
The Home Office had planned to replace the Airwave secure emergency communication system, which launched in 2000, with a more advanced Emergency Services Network by the close of the decade. However, the legacy network has seen its life extended as its replacement was beset with delays. The ESN is expected to go live in 2026.
In a procurement notice, the Police Digital Service (PDS) said it was looking for up to three suppliers of Terrestrial Trunked Radio (TETRA) Encryption Algorithm 2 (TEA2) compatible radio devices – including handheld, desktop, and mobile terminals – as well as software, accessories, services, and maintenance for use on the UK Airwave system.
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