Subband adaptive equaliser tracking for fractionally-sampled fading broadband MIMO channels

This paper demonstrates the performance of a subband adaptive multiple-input multiple-output (MIMO) equaliser tracking the inverse of a Doppler-filtered Rayleigh-fading broadband channel. The subband adaptive equaliser is shown to outperform the fullband equivalent for channels with a high spectral dynamic range and long MMSE equaliser response in terms of tracking MSE and computational cost.