MIMO techniques in the frequency domain with FBMC-PAM

Abstract

FBMC-PAM is a recently introduced filter bank multicarrier technique which exploits pulse amplitude modulation and operates at the same symbol rate as OFDM, unlike FBMC-OQAM which operates at twice that symbol rate. The scheme is efficiently implemented in the frequency domain and, in the system, the receiver is equipped with a frequency domain equalizer. In the present paper, it is shown how MIMO techniques can be introduced in the scheme and the performance is illustrated in single- and multi-user scenarios. The analysis and the simulation results show that the frequency domain approach might be as beneficial to FBMC-MIMO techniques as it is to channel equalization.