One possible suggestion: some cell phones allow you to use their cell internet connection and create a Personal Hotspot (the phone acts as a WiFi broadcaster).

If you have unlimited internet and feel keeping a phone near the camera that may improve quality...

https://support.apple.com/en-us/ht204023

https://www.techadvisor.co.uk/how-to/mobile-phone/how-use-android-phone-as-wi-fi-hotspot-3279408/