Decision-directed estimation of MIMO time-varying Rayleigh fading channels

Authors:
Jie Gao;Huaping Liu
Affiliations:
Sch. of Electr. Eng. & Comput. Sci., Oregon State Univ., Corvallis, OR, USA;-
Venue:
IEEE Transactions on Wireless Communications
Year:
2005

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Cited 1

Iterative receiver design with joint channel estimation and synchronization for coded MIMO-OFDM over doubly selective channels

GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications

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Abstract

This paper presents a decision-directed (DD) maximum a posteriori probability (MAP) channel-estimation scheme for multiple-input multiple-output (MIMO) time-varying fading channels. With the estimate of the channel matrix for the current symbol interval, a zero-forcing (ZF) receiver is applied to detect the spatially multiplexed data on a symbol-by-symbol basis. Symbol decisions are then fed to the channel predictor for estimation of channel coefficients in future symbol intervals. Simulated error performance of a ZF receiver with the DD MAP and perfect channel estimates is provided and compared.