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ITU Give Consent To New 40Gbps Fiber-to-the-Home Broadband Standard
Mark.JUK writes: The International Telecommunication Union has just granted first-stage approval ("consent") to two new ultrafast Fiber-to-the-Home (FTTH) optical broadband standards. The first (NG-PON2) will support Internet download speeds of 40Gbps (Gigabits per second) and on top of that the new XGS-PON aims to deliver a symmetric 10Gbps service (same upload and download rate). By comparison, the previous XG-PON standard only ensured an asymmetric speed of 10Gbps download and 2.5Gbps upload. Now all we need is computers, Internet services and Wi-Fi networks that can actually harness such performance in the first place.
Did anyone else read that as "P0wN2"?
Knowledge is how to play a game, intelligence is how to win, wisdom is knowing what game to play.
Nobody needs more than 640kbps.
Stop bastardizing the terminology.
"A plan fiendishly clever in its intricacies"- Homer Simpson
First we need ISPs to provide broadband service.
We can't buy it if they won't sell it.
Minimum threshold fixed. Thanks!
40GBs split 16:1 or 32:1 at the local node should give each home 1GBS each way.
Fantastic! Yet another high-speed standard that will be completely ignored by the telco oligopoly here in the US. At least Europe and Asia will benefit.
Slashdot still doesnâ(TM)t support Unicode after it was added to the HTML standard in 1997.
Yea but you could split it 256:1 then still charge for a gigabit line that you get 5-10% of the time. It's what every ISP in the USA does with their 100mbit home service!
All the kids in Japan are on FTTA now, with most apartment rooms having multiple 100G FTTA outlets
(fibre to the anus)
Time for you internet providers to get with the program.... for the same price we are paying now...
It would make up for the upgrade in the 90s that included tac breaks and incentives worth over 12 billion $, and didn't happen.
Wi-Fi networks that can actually harness such performance
Decades of GBits/second of speed over WiFi? Good luck with that. Either it needs to be broad-spectrum 'just above the noise floor' (other words for 'it drowns out all other weak signals' ... can create havoc on things like GPS reception) on the conventional bands, or we need to develop radio transmitters that can broadcast in the THz spectrum. Maybe use light for wireless transmission? (Light has a frequency of 400-800 THz)
To transmit a signal with a certain information density, you need a bandwidth at least as large as the information density in bits/second (for a 'standard mode' like PSK), unless you use 'tricks' like quadrature amplitude modulation. You can then send more bits in the same bandwidth, at the cost of successful signal detection at lower signal strength (the receiver now also must be able to differentiate between (various) amplitude level(s), not only phase shift). In other words, you need a stronger signal at the receivers end to successfully transmit more bits at the same radio bandwidth use, meaning, more noise/interference for neighbouring signals or less possible transmission distance between sender and receiver.
If we don't want to 'polute' the entire 'conventional' radio spectrum (which is everything up to a few GHz currently with WiFi signals, we need to create technology that can transmit in a higher band. Unfortunately there are various kinds of physical and technological problems with THz frequencies. To name a few: Absorbtion by water/air molecules. Can't travel through walls. At the upper end, this is ionizing radiation (Start wearing your alu foil hats). Difficult to switch transistors at those speeds.
WDP-PON is 40Gb split 32 ways with a dedicated 1.25Gb per end point
XG-PON1 is 10Gb down 2.5Gb split 32 ways, non-dedicated but up to 10Gb per device
XG-PON2 is 10Gb down and up split 32 ways, non-dedicated but up to 10Gb per device
TWDM-PON is 80Gb down and up split 32 ways, non-dedicated but up to 10Gb per device
NG-PON2 is similar to TWDM-PON, but caps out at 40Gb for the current implementation. Where it really stands out is the standard should scale up to 25Tb/s with 100Gb per customer. This makes it desirable for a smooth upgrade path into the far future.
We are currently rolling out 10gbit to our subscribers in Åtvidaberg, Sweden. The hardware does allow us to send 40gbit to each subscriber for future growth, but even 10gbit is overkill as almost everyone went for the 1gbit service ($60/m difference).
You underestimate 40Gb/s. That's probably nearly as fast your ISP's local trunk, but instead of sharing that with 100k people, you're only sharing it with 256. Few ISPs use a 256 split because of the signal strength reduction.
TWDM-PON can actually split up to 128 ways. Most PON standards support at least 64. 32 way splits are just a conservative approach that many ISPs take. None of it really has much to do with how much bandwidth you can sell in practice. Most ISPs are going to hit backhaul and IP drain limitations long before they congest any of their PON access layer.
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TWDM-PON only supports 128 way split. GPON only supports a 64 way split. Many ISPs are conservative and only do a 32 way split on GPON anyway just to give themselves more leeway for fiber defects.
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Fuck, I just got Gigabit FTTH last week... And now you're telling me it is already outdated and that I need to upgrade to 40gbps!?!? Well SHIT!
I would be smiling from ear-to-ear if I could get 40Mbps at home.
Up until about two months ago, I was limited to 1.5M/384k DSL. AT&T finally rolled out VDSL and now I can get 12M/1M, and our neighborhood has been told that this is it. Forever. No more wireline upgrades. Ever.