Filter Bank Multicarrier for Massive MIMO

This chapter extends the blind equalization capability of cosine modulated multitone (CMT) to massive multi-input multi-output (MIMO) applications in order to remove the channel estimation errors caused by contaminated pilots. Based on observations of numerical results, the proposed blind equalization technique is able to remove pilot contamination effects in multicellular massive MIMO networks and converge towards the optimal linear minimum mean square error (MMSE) performance. The chapter dedicates to the system model and formulation of filter bank multi-carrier (FBMC) in massive MIMO channels. It presents a qualitative comparison of FBMC and orthogonal frequency division multiplexing (OFDM) in massive MIMO systems. It addresses the pilot contamination problem in a multicellular massive MIMO network. The pilot contamination problem in massive MIMO networks operating in time-division duplex (TDD) mode can limit their expected capacity to a great extent. The blind equalization capability of CMT was extended to massive MIMO networks to mitigate the pilot contamination effect.