A subspace blind channel estimation method for OFDM systems without cyclic prefix

Authors:
S. Roy;Chengyang Li
Affiliations:
Dept. of Electr. Eng., Washington Univ., Seattle, WA;-
Venue:
IEEE Transactions on Wireless Communications
Year:
2002

Citing 0
Cited 5

Subspace algorithm for blind channel identification and synchronization in single-carrier block transmission systems

Signal Processing
Fractionally-sampled blind channel estimation for a mobile communication system

Mobility '08 Proceedings of the International Conference on Mobile Technology, Applications, and Systems
Dynamic pilot carriers assignment for DVB-H system

WOCN'09 Proceedings of the Sixth international conference on Wireless and Optical Communications Networks
Performance analysis of RLS based channel estimation in UWB OFDM system

Proceedings of the International Conference and Workshop on Emerging Trends in Technology
MC-CDMA MIMO systems with quasi-orthogonal space–time block codes: Channel estimation and multiuser detection

International Journal of Communication Systems

Quantified Score

Hi-index	0.01

Visualization

Abstract

We propose a subspace based blind channel estimation method for orthogonal frequency-division multiplexing (OFDM) systems over a time-dispersive channel. Our approach is motivated by the resemblance of the multichannel signal model resulting from oversampling (or use of multiple receive sensors) of the received OFDM signal to that in conventional single carrier system. The proposed algorithm distinguishes itself from many previously reported channel estimation methods by the elimination of the cyclic prefix, thereby leading to higher channel utilization. Comparison of the proposed method with other two reported subspace channel estimation methods is presented by computer simulations to support its effectiveness.