Microwave Mobile Communications
Microwave Mobile Communications
Fundamentals of wireless communication
Fundamentals of wireless communication
MIMO Wireless Communications
Recursive fading memory filtering
Information Sciences: an International Journal
Multi-input multi-output fading channel tracking and equalizationusing Kalman estimation
IEEE Transactions on Signal Processing
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In this paper, we use the cubature Kalman filter (CKF) for joint channel estimation and data detection in multiple-input multiple-output (MIMO) systems subject to fast frequency-selective fading. First, based on a model of the channel coefficients and transmitted symbol dynamic, the problem is formulated in the state-space form, leading to a nonlinear observation equation. Then, the CKF is presented and some changes are proposed to improve the estimation and detection processes in the receiver, and to overcome modeling errors. Finally, through numerical simulations, it is shown that the CKF can be used to track channel variations and detect transmitted symbols with low error rates.