How to Remote Control Android smartphone, if not in same subnet
If your phone is rooted (which I'm assuming it is since you're running Oxygen), you could try androidscreencast. It allows you to interact with a rooted phone over USB using mouse and keyboard. It's not the fastest solution, but then again, neither is a VNC server and the like.

There's a fairly decent walkthrough on how to set everything up on How-To Geek. You'll also need to have adb in order to use androidscreencast (the Android SDK is one way; there's probably also some places you can directly download the necessary binaries).