Pilot contamination problem in massive MIMO networks operating intime-division duplex (TDD) mode can limit their expected capacity to a greatextent. This paper addresses this problem in cosine modulated multitone (CMT)based massive MIMO networks; taking advantage of their so-called blindequalization property. We extend and apply the blind equalization techniquefrom single antenna case to multi-cellular massive MIMO systems and show thatit can remove the channel estimation errors (due to pilot contamination effect)without any need for cooperation between different cells or transmission ofadditional training information. Our numerical results advocate the efficacy ofthe proposed blind technique in improving the channel estimation accuracy andremoval of the residual channel estimation errors caused by the users of theother cells.
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