Hi,
Can you find the SSID in your cell phone?
If we can, I suggest to assign static IP address to your ad-hoc network adapter in Network and sharing Center -> Change Adapter settings ->Right click the ad-hoc adpter and choose properties -> Please try static IP address on IPv4.
If we cannot find the ad-hoc network on your Cell phone, please refer to this article to re-configure:
How To Create Wireless Ad Hoc Internet Connection In Windows 8 [Tip]
http://www.addictivetips.com/windows-tips/how-to-create-wireless-ad-hoc-internet-connection-in-windows-8/
If possible, let's see if other mobile device can connec to the ad-hoc network you set.
For further research, please post back the results of following command:
netsh wlan show drivers
Ipconfig /all