There are many implementations of improved congestion control for TCP, several of which are implemented in the Linux kernel.
It's trivially easy to modify congestion control to get arbitrarily fast performance in high bandwidth-delay environments. I can tell you from experience that implementing fast performance in extremely lossy environments is harder.
And hardest of all is to come up with a solution that works on a network that is shared with the common congestion control implementations, and that works with billions of end nodes.
I spent years working on this. Feel free to reach out to me on my email address, I'd love to share with you my experience of commercializing such a product.
It's trivially easy to modify congestion control to get arbitrarily fast performance in high bandwidth-delay environments. I can tell you from experience that implementing fast performance in extremely lossy environments is harder.
And hardest of all is to come up with a solution that works on a network that is shared with the common congestion control implementations, and that works with billions of end nodes.
I spent years working on this. Feel free to reach out to me on my email address, I'd love to share with you my experience of commercializing such a product.