Random matrix theory and wireless communications
Communications and Information Theory
ICI mitigation for pilot-aided OFDM mobile systems
IEEE Transactions on Wireless Communications
On the Performance of the MIMO Zero-Forcing Receiver in the Presence of Channel Estimation Error
IEEE Transactions on Wireless Communications
IEEE Transactions on Communications
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The effect of phase noise in multiple-input-multiple-output systems employing orthogonal frequency division multiplexing is analyzed in a realistic scenario where channel estimation is not perfect, and the phase noise effects are only partially compensated. In particular, the degradation in terms of SNR is derived and the effects of the receiver and channel parameters are considered, showing that the penalty is different for different receiver schemes. Moreover it depends on the channel characteristics and on the channel estimation error. An analytical expression is used to evaluate the residual inter-channel interference variance and therefore the degradation. The effects of multipath and antenna diversity are shown to be different for the two types of linear receivers considered, the zero-forcing scheme and the minimum mean squared error receiver.