Microwave Mobile Communications
Microwave Mobile Communications
IEEE Transactions on Wireless Communications
Polynomial spline-approximation of Clarke's model
IEEE Transactions on Signal Processing
Pilot-assisted estimation of MIMO fading channel response and achievable data rates
IEEE Transactions on Signal Processing
Time-Variant Channel Estimation Using Discrete Prolate Spheroidal Sequences
IEEE Transactions on Signal Processing
Space-time decoding with imperfect channel estimation
IEEE Transactions on Wireless Communications
Space-time block codes from orthogonal designs
IEEE Transactions on Information Theory
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
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An optimal detector for space-time block coded signals with pilot symbol assisted modulation in multiple-input multiple-output (MIMO) systems with imperfect channel estimation is proposed and investigated. We compare its performance with that of traditional mismatched detectors treating channel estimates as perfect in spatially and temporally correlated fading channels. The channel time variations are approximated by using the basis expansion model (BEM). Specifically, the discrete prolate spheroidal basis functions are used. In both spatially uncorrelated and spatially highly correlated MIMO Rayleigh fast fading channels, the optimal detector significantly outperforms the mismatched detectors including the one exploiting minimum mean square error channel estimates.