Make Mobile Server through hotspot.

I want to make a mobile game which can play by multiplayer locally.

Procedure: One of the mobile host (hotspot-wifi) for other mobiles which can connect to the network via that hotspot-wifi.
The mobile which generates/host (wifi) also can play. Anyone can know that how it is possible or any video tutorial link. Please tell me fast.
I am very thankful for helping me in advance.

 

Any solutions???