ADC signal long trace voltage drop compensation using amp and return trace
That sort of remote sensing is usually used for transmitting power over long cables, not for signals. 

Signals should be received with a high impedance inputs so that the current is small enough in the wires that resistive losses are trivial. 

If you are transmitting over a long distance, it is also prudent to add buffers/drivers to the sending end to transmit a differential signal from a low impedance output. Or perhaps using a current loop of some sort. Or better still, digitize it remotely.