I'll believe it when I see it
I spoke with the engineers on the project, and they were fairly confident. I'm more leery of the regulatory, licensing, and ramp costs.
It's not impossible that someone created a better way to utilize available spectrum. It's just that getting that solution in place takes a lot more than a great solution.
If they can do it, (and the existing Tech companies don't try to squash it) I hope it works. I also hope that this somehow lowers costs for consumers.
Dogs are great judges of character, and if your dog doesn't like somebody being around, you shouldn't trust them.
I'm reading through their patent... and from what I can tell they are using noise and interference that is already in the air and treating it like usable signal and injecting new rf into the "noise" to amplify their own signal.
Where as QAM, typically waits it's turn, and or ends up battling other noise and interference.
To put it simply, QAM fights the waves, and WAM rides the waves.
They have a graph comparing WAM to QAM showing error rates and signal strength in ideal conditions and conditions with interference and noise and the grouping with WAM is much tighter where as QAM is greatly affected by noise and interference.
On paper, this is really cool stuff and definitely could work... but there have been others with these cool ideas that end up blowing up in their faces.
One of the shortcomings of "QAM-OFDM" is the excessive frame-time required to convey a useful range of QAM symbols carried on a plurality of closely offset sub-carriers, which are interfering with each other for all but a short readable moment during each frame.
Based on how MagnaCom's "WAM" product virtually plugs into existing
"QAM-OFDM" based systems, I sense this is an evolutionary refinement
to "QAM-OFDM" which lowers the time that each QAM sub-carrier spends interfering with its counterparts and in due course it provides for shorter frame-times and ultimately greater
data thru-put.Symbol contention caused by closely spaced sub-carriers has always put a limit on the usefulness of "QAM-OFDM" and so "WAM" may be a significant refinement since it seems to plug right in. Notwithstanding, digital modulation is undergoing a major revolution at the moment and I can confidently say that newer methods are going to provide exponential improvements all the way around, so I wouldn't bet the entire farm on "WAM" - just a few acres.
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