Hybrid time-frequency layered space-time receivers for severe time-dispersive channels

Single carrier modulations (SC) combined with frequency domain equalization (FDE) techniques have been shown to be a valuable alternative to the popular OFDM modulations, especially in regard to its robustness to RF implementation impairments. We introduce a class of SC-FDE receivers for a layered space-time architecture (LST). These receivers have a hybrid structure with frequency domain feedforward and time domain feedback filters. The performance of the proposed receivers are evaluated for severe time-dispersive channels.

[1]  David Falconer,et al.  Frequency domain equalization for single-carrier broadband wireless systems , 2002, IEEE Commun. Mag..

[2]  Ali H. Sayed,et al.  The finite-length multi-input multi-output MMSE-DFE , 2000, IEEE Trans. Signal Process..

[3]  R. Dinis,et al.  Comparison of two modulation choices for broadband wireless communications , 2000, VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026).

[4]  Sebastien Roy,et al.  Multi-user decision-feedback space-time equalization and diversity reception , 1999, 1999 IEEE 49th Vehicular Technology Conference (Cat. No.99CH36363).

[5]  Liesbet Van der Perre,et al.  Single-carrier communication using decision-feedback equalization for multiple antennas , 2003, IEEE International Conference on Communications, 2003. ICC '03..

[6]  Angel E. Lozano,et al.  Layered space-time receivers for frequency-selective wireless channels , 2002, IEEE Trans. Commun..

[7]  M. J. Gans,et al.  On Limits of Wireless Communications in a Fading Environment when Using Multiple Antennas , 1998, Wirel. Pers. Commun..