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mhhf1ve
mhhf1ve
3/4/2019 3:19:04 PM
User Rank
Gigamaster
Re: This is Great...
>"can't wait to have lightning fast internet no matter what floor of a hotel I am in. "

Hmm. Have you noticed a significant difference in broadband speeds that depends on the floor of a hotel? I haven't.. but mostly because hotel broadband isn't particularly blazingly fast or anything.

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JohnDrake
JohnDrake
2/28/2019 12:45:48 PM
User Rank
Gigamaster
Re: double
Thank you, makes sense. Since it is the last mile, or last few hundred feet, I am guessing signal conditions are usually not too punishing, and Gfast can operate near its optimum,

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Lincoln Lavoie
Lincoln Lavoie
2/28/2019 8:42:10 AM
User Rank
Author
Re: double
Correct, the total power was maintained, so the power density is lower when using the increased spectrum.  In terms of the SNR, the question is a little more complication.  The Gfast modulation allows the number of bits (constellation size) to be adjusted for each subcarrier.  Part of that adjustment is for the system to "aim" for an average SNRM that was set as the "Target SNRM" by the operator.  So essentially, their allowance for noise is as close or wide as the operator wishes.  But (there's alwyas a but), Gfast also includes SRA and FRA operations, which allows the number of bits to be lowered or increased depending on the changing noise conditions, while the link remains "up" (passing user traffic). The thresholds for htose changes are also under the operator's control. Hope this helps answer the quesiton.

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JohnDrake
JohnDrake
2/28/2019 5:24:47 AM
User Rank
Gigamaster
double
Double the spectrum, but at the same total energy, so presumably a smaller signal to noise ratio, but that's an insignificant because the ratio is still pretty high, or high enough, yes?

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careerjobs360c
careerjobs360c
2/28/2019 1:08:35 AM
User Rank
Narrowbander
ULE Alliance
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michelle
michelle
2/26/2019 9:17:29 PM
User Rank
Gigamaster
Re: This is Great...
That would be great. Sluggish connections could finally be a thing of ye olden days.

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afwriter
afwriter
2/26/2019 6:29:24 PM
User Rank
Gigamaster
Re: This is Great...
I personally can't wait to have lightning fast internet no matter what floor of a hotel I am in. 

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michelle
michelle
2/26/2019 3:05:08 PM
User Rank
Gigamaster
Re: This is Great...
It would be great for those future consumers, for sure. I've heard a lot of horror stories about poor performance in multi-unit dwellings.

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afwriter
afwriter
2/25/2019 9:28:13 PM
User Rank
Gigamaster
Re: This is Great...
Fiber will always have a slight advantage over Gfast when it comes to reliability but it will be such a great tool to have for multi-unit dwellings in the future.  

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Commisio44354
Commisio44354
2/25/2019 6:21:11 PM
User Rank
Gigamaster
Re: This is Great...
I can't help but wonder when you think this will be?

 

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