XPIC – Cross Polarization Interference Cancellation
XPIC is a feature used on Carrier-Class Microwave Link installations to increase capacity and spectral efficiency of a link.
A Microwave Link using XPIC technology capabilities effectively doubles the potential capacity of a Microwave Path.
XPIC allows the assignment of the same frequency to both the vertical & horizontal Polarization on a Path. Where available frequencies are limited then it is possible to assign the same frequency twice on the same path using both Polarizations.
Using standard Microwave equipment from any of the major manufacturers, if a full block of eight frequencies were available for a 6 GHz Lower band path then eight frequencies could be assigned in each direction on the path, four per polarization.
By comparison. using equipment with XPIC capability, sixteen frequencies may be assigned each way on the same path (eight per polarization).