Question [Q] Share PC internet to android w/o WiFi

Hi,
I'd like to share internet connection from notebook to android without using WiFi. I've already followed some USB reverse-tethering instructions, but with no results. The thing is - in our college dormitories, we have only wired connection and it's forbidden to create WiFi networks (don't ask me why) and they scan the network and detect routers and access points. So is there any way to do this through USB or bluetooth?

I have Nexus 4, no root, stock ROM. If it was absolutely necessary, I'd root that.

Thank you.