Wireless Camera Relay

Have wanted to set up a camera on the rear of the trailer. Initially thought I was going to be able to run wired camera to the truck's Infotainment centre, as per assurance from dealer at time of purchase, but turns out they were wrong.

Although I prefer not having a separate monitor for this purpose, I have started looking at after-market systems. Would rather not have to run wires along truck and through firewall, so figure wireless is an option. But have heard/read of issues with some systems, regarding loss of signal.

Not knowing that much about these things, why can't one have an antenna on the roof at the camera location, and a second antenna on the roof at the front of the trailer. This second antenna would have direct line of sight to both the camera antenna and the truck cab, and act as a signal relay/booster? Or is this not possible??

Marv