Estimation and equalization of fading channels with random coefficients
Signal Processing - Special issue on higher order statistics
Principles of mobile communication (2nd ed.)
Principles of mobile communication (2nd ed.)
Space-Time Block Coding for Wireless Communications
Space-Time Block Coding for Wireless Communications
Adaptive algorithms for wireless channel estimation: transient analysis and semi-blind design
Adaptive algorithms for wireless channel estimation: transient analysis and semi-blind design
Introduction to Space-Time Wireless Communications
Introduction to Space-Time Wireless Communications
Channel estimation for multicarrier multiple input single output systems using the EM algorithm
IEEE Transactions on Signal Processing
Blind channel identification and equalization in OFDM-based multiantenna systems
IEEE Transactions on Signal Processing
An EM-Based Forward-Backward Kalman Filter for the Estimation of Time-Variant Channels in OFDM
IEEE Transactions on Signal Processing - Part II
Estimation of multipath parameters in wireless communications
IEEE Transactions on Signal Processing
Optimal training design for MIMO OFDM systems in mobile wireless channels
IEEE Transactions on Signal Processing
Multi-input multi-output fading channel tracking and equalizationusing Kalman estimation
IEEE Transactions on Signal Processing
Subspace-based (semi-) blind channel estimation for block precodedspace-time OFDM
IEEE Transactions on Signal Processing
Exploiting input cyclostationarity for blind channel identificationin OFDM systems
IEEE Transactions on Signal Processing
Iterative receivers for space-time block-coded OFDM systems in dispersive fading channels
IEEE Transactions on Wireless Communications
Pilot tone selection for channel estimation in a mobile OFDM system
IEEE Transactions on Consumer Electronics
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
Channel estimation for OFDM systems with transmitter diversity in mobile wireless channels
IEEE Journal on Selected Areas in Communications
Cyclic prefix based enhanced data recovery in OFDM
IEEE Transactions on Signal Processing
A model reduction approach for OFDM channel estimation under high mobility conditions
IEEE Transactions on Signal Processing
International Journal of Information and Communication Technology
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Orthogonal frequency division multiplexing (OFDM) has emerged as a modulation scheme that can achieve high data rates over frequency selective fading channel by efficiently handling multipath effects. This paper proposes receiver design for space-time block coded MIMO OFDM transmission over frequency selective time-variant channels. Joint channel and data recovery are performed at the receiver by utilizing the expectation-maximization (EM) algorithm. It makes collective use of the data constraints (pilots, cyclic prefix, the finite alphabet constraint, and space-time block coding) and channel constraints (finite delay spread, frequency and time correlation, and transmit and receive correlation) to implement an effective receiver. The channel estimation part of the receiver boils down to an EM-based forward-backward Kalman filter. A forward-only Kalman filter is also proposed to avoid the latency involved in estimation. Simulation results show that the proposed receiver outperforms other least-squares-based iterative receivers.