Time-varying Channel Estimation and Symbol Detection Using Superimposed Training in OFDM Systems
Wireless Personal Communications: An International Journal
EURASIP Journal on Wireless Communications and Networking - Special issue on OFDMA architectures, protocols, and applications
IEEE Transactions on Signal Processing
Bayesian Cramer-Rao bound for OFDM rapidly time-varying channel complex gains estimation
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Joint synchronization and channel estimation for OFDM transmissions over doubly selective channels
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Cyclic prefix based enhanced data recovery in OFDM
IEEE Transactions on Signal Processing
A novel BEM- based channel estimation algorithm for time variant uplink OFDMA system
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
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
Low complexity equalization for doubly selective channels modeled by a basis expansion
IEEE Transactions on Signal Processing
EURASIP Journal on Advances in Signal Processing - Special issue on advanced equalization techniques for wireless communications
EURASIP Journal on Advances in Signal Processing - Special issue on applications of time-frequency signal processing in wireless communications and bioengineering
Time-frequency based channel estimation for high-mobility OFDM systems
EURASIP Journal on Advances in Signal Processing - Special issue on applications of time-frequency signal processing in wireless communications and bioengineering
Semiblind iterative data detection for FDM systems with CFO and doubly selective channels
IEEE Transactions on Communications
Channel estimation for OFDM systems using Kalman filter algorithm
Proceedings of the 1st International Conference on Wireless Technologies for Humanitarian Relief
Time-varying channel estimation for OFDM with extended observation window
Proceedings of the ninth ACM international workshop on Vehicular inter-networking, systems, and applications
Iterative Decomposed OFDM Channel Estimation Algorithm Over Highly Mobile Channels
Wireless Personal Communications: An International Journal
Iterative estimation of the time-varying underwater acoustic channel using basis expansion models
Proceedings of the Eighth ACM International Conference on Underwater Networks and Systems
| Hi-index | 35.69 |
In this paper, we deal with channel estimation for orthogonal frequency-division multiplexing (OFDM) systems. The channels are assumed to be time-varying (TV) and approximated by a basis expansion model (BEM). Due to the time-variation, the resulting channel matrix in the frequency domain is no longer diagonal, but approximately banded. Based on this observation, we propose novel channel estimators to combat both the noise and the out-of-band interference. In addition, the effect of a receiver window on channel estimation is also studied. Our claims are supported by simulation results, which are obtained considering Jakes' channels with fairly high Doppler spreads