Does the Droid Turbo wifi have to be on to connect to Miracast on my tv?

[AC Question]

does droid turbo wifi have to be on to connect to miracast on tv.

I have old cellular one unlimited data plan with verizon. I want to get netflix on droid turbo and mirror it to my LG tv. I read miracast crates it's own signal to connect to phone. Does the wifi on the phone have to be on, that would cost extra on my plan. I have no other wifi to connect to.