Efficient bidirectional DFE for doubly selective wireless channels
EURASIP Journal on Applied Signal Processing
IEEE Transactions on Signal Processing
The performance of multiwavelets based OFDM system under different channel conditions
Digital Signal Processing
A Gibbs sampling based MAP detection algorithm for OFDM over rapidly varying mobile radio channels
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
IEEE Transactions on Signal Processing
Fast algorithms in slow and high Doppler mobile environments
IEEE Transactions on Wireless Communications
Wireless Personal Communications: An International Journal
Joint data QR-detection and Kalman estimation for OFDM time-varying Rayleigh channel complex gains
IEEE Transactions on Communications
A N-Radon Based OFDM Trasceivers Design and Performance Simulation Over Different Channel Models
Wireless Personal Communications: An International Journal
Reduced complexity ICI cancellation scheme for OFDM DVB-SH receivers
Microprocessors & Microsystems
SAGE Algorithm for Semi-Blind Channel Estimation and Symbol Detection for STBC MIMO OFDM Systems
Wireless Personal Communications: An International Journal
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In mobile reception, the reliability of orthogonal frequency division multiplexing (OFDM) is limited because of the time-varying nature of the channel. This causes intercarrier interference (ICI) and increases inaccuracies in channel tracking. We model the ICI using derivatives of the channel amplitude. This allows us to design a relatively simple receiver scheme that iteratively cancels the ICI. The design of the canceler aims at maximizing the signal-to-noise-plus-ICI ratio at the detector input. We also propose a new channel estimator, and we show that it achieves reliable mobile reception in practical situations that are relevant to terrestrial Digital Video Broadcasting (DVB-T). Extensive simulations for a receiver with one or two antennas show that a small number of iterations between ICI cancellation and channel estimation allow a reliable reception at vehicle speeds above 100 km/h.