You can use your computer as a wireless hotspot. This allows other devices to connect to you without a separate network, and allows you to share an internet connection you’ve made with another interface, such as to a wired network or over the cellular network.
Things I'm not sure about: Is this actually ad-hoc? It seems to use the same icon. What happens if you have multiple wireless adapters? Ought to be able to share wireless to wireless, I think, but I don't know what the UI looks like. Also, does any of this work? I couldn't successfully test.
Also, looks like there's no page to set the device name. Make one, then link below where it says the name of the network is your device name.
Open the
Select
Click
Press the menu button in the top-right corner of the window and
select
If you are already connected to a wireless network, you will be
asked if you want to disconnect from that network. A single wireless adapter
can connect to or create only one network at a time. Click
A network name (SSID) and security key are automatically generated. The network name will be based on the name of your computer. Other devices will need this information to connect to the hotspot you’ve just created.
You can also connect to the wireless network by scanning the QR Code on your phone or tablet using the built-in camera app or a QR code scanner.