Mosfet Gate Driver far from mosfet
The problem here is to create a pulse at the gate of the mosfet that is as close as possible to the output of the driver.  You are creating a transmission line between the driver and the mosfet.  The characteristics of that transmission line become important when the round trip delay of the line is long with respect to the rise time of the pulse.  The fastest the wave can travel is 3ns/m.  realistically this will be 4-6ns/m.  So if the edges of the pulse are in the few ns rage you may have trouble.  Your driver says the rise and fall times are typialy  25ns so you should be alright.  If not, consider using a transmission line like the twisted pair suggested in the comments or coax and using proper termination methods.  You can also slow down the edges at the driver end with an RC.  Limiting the rise time to 100ns should remove all doubt for distances less than a meter.