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Filter Bank Multicarrier in Massive MIMO: Analysis and Channel Equalization. (arXiv:1706.09744v1 [cs.IT])
来源于:arXiv
We perform an asymptotic study of the performance of filter bank multicarrier
(FBMC) in the context of massive multi-input multi-output (MIMO). We show that
the effects of channel distortions, i.e., intersymbol interference and
intercarrier interference, do not vanish as the base station (BS) array size
increases. As a result, the signal-to-interference-plus-noise ratio (SINR)
cannot grow unboundedly by increasing the number of BS antennas, and is upper
bounded by a certain deterministic value. We show that this phenomenon is a
result of the correlation between the multi-antenna combining tap values and
the channel impulse responses between the mobile terminals and the BS antennas.
To resolve this problem, we introduce an efficient equalization method that
removes this correlation, enabling us to achieve arbitrarily large SINR values
by increasing the number of BS antennas. We perform a thorough analysis of the
proposed system and find analytical expressions for both equalizer coeffici 查看全文>>