Hal comrades, the following scenario: I have Internet from 3 sources (1x Wlan public, with MAC filter, ie activation for a specific MAC address), 1x Mifi hotspot on 3G Baiss (My UMTS), 1x 4G (LTE or HSDPA) Mobile phone, each with no volume limit or throttling. Problem: It's not all that fast.
Have seen there's a purchase software for Windows (expensive so 150 euro or so n Schnack) because you can virtually merge everything, so that everything is faster and offer its own hotspot to his devices, so Alexa, iPad, TV, several laptops what you have everything so today.
Is it possible to do that with a little Pi, Arduino or something?
Yes, you are right, it is certainly "Schnack", I would call it nonsense or even impossible for Otto normal consumers.
That's just rip off, with such a "Schnack" software.
Multiple Internet access used in parallel is not possible. You only do that if you have a lot of internet clients.
An Internet client (e.g., 1 PC) will never use multiple Internet lines / sources in parallel. You might be able to achieve that he uses the best of the 3 approaches, but never somehow combined at the same time.
The purchase software I do not know, but doubt that she could help you. You can use multiple Internet lines in parallel and in total therewith load more, also you achieve a certain reliability by the interconnection. It will be difficult if you want to do a UP or download faster. Because there must be a counterpart on the Internet, which distributes the data stream on the three lines, so that one software can put the power back together.
That all your channels are based on radio and you want to redistribute the network with an access point as a Wi-Fi, you hinder yourself.
Since I do not know what software you mean or what it's called, I do not know if it could run on a microcomputer or be replicated.
INetFusion is the name of the part (there's also Speedify, do not remember the details, iNetFusion had been looking at it for a long time)
The Wi-Fi is usually the fastest, but drops out 20% of the time. It's all about stability and fast enough, do not set up speed recod…
iNetFusion is called the Schnack (there's also Speedify, do not remember the details, had iNetFusion looked at longer)
Forget it - this requires special hardware and software that you do not get so easily. Furthermore your Internetprovider must participate.
An example was DSL over Sattelit. Since there were offers, that the upload channel went over telephone / ISDN and he download channel over Sat.
You just have to define exactly what data is routed through these channels.
In your costellation it can even happen that it does not even get faster, even if you get it implemented with a software.
Parallelization brings speed advantages only with appropriate programming.