Pilot Design for Phase Noise Mitigation in Millimeter Wave MIMO-OFDM Systems

This paper is concerned with the phase noise mitigation in millimeter wave (mmW) multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. We first develop a model for phase noise in the mmW MIMO-OFDM system with hybrid precoding. A pilot-assisted estimation and compensation (PEC) scheme is then proposed by jointly estimating the channel response and effective phase noise. Numerical results show that, compared with the available alternative, the PEC scheme can achieve significant performance gain.