For a simple, easy, bug-free, full feature MineCraft PE server, the easiest way is to just use a dedicated iPod, iPad, or iPhone.
Unfortunately, there is not currently a way to convert worlds from your MCPC to your MCPE server.
Simply: - Used an old iPod Touch, iPad, iPhone,
- Install the app (free since you already bought it),
- Set lock screen time to "never" (Settings > General > Auto-Lock > Never),
- Start the app
- Set volume to zero
- Place on shelf on a charger
- Forget about it, it just simply works, all the time.
You can copy an existing world from your current device with free programs like iExplorer. Copy your world to the "server idevice", now everyone in the house can join from their device.