Polarimetrie interference-alignment beamforming

Abstract

We introduce the concept of Polarimetric interference-alignment (PIA) beamforming for multiuser MIMO channels. By using vector antennas, we harness the orthogonal polarization components of electromagnetic waves to provide a signal space for the interference-alignment technique proposed by Cadambe and Jafar. We show that such beamformer exists and provide preliminary comments regarding its operation and performance.