I have been helping my neighbor with exactly that.  He has 13 miners running on a verizon unlimited.  Not sure unlimited is important since miners do not use all that much bandwidth.  He only has about 2 bars and I actually do not know his ping times, but he is mining consistently.  The hot spot does drop off once in a while (every few days) so I built up a system that resides inside of his firewall.  The system logs in to each miner each minute and if it is below 70% hash rate (can be overriden if a board is bad), it reboots the miner.  I am also putting in a Digital Loggers Web Power Switch that has built in ping ability.  I have the verizon box, the network switch, pfsense router and miner monitoring system on this device.  The first two power cycle if the 2 minute ping to 8.8.8.8 fails twice.  The other devices power cycle if they do not ping directly.

Obviously having more bars is better for ping times and if you ever travel, it is best to have some sort of reboot system in place (Edit - even if it is your neighbor!).

oops, I just re-read and a cell hotspot is not a wifi hotspot is it!  Oh well, the power switch still may be helpful to some here.  Mine On!