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A channel estimation algorithm for MIMO-SCFDE

delete2004-09-01
delete33
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OA
AI
J
J. Siew
J
Justin P. Coon
R
Robert J. Piechocki
A
A. Dowler
A
Andrew Nix
M
Mark A Beach
S
Simon Armour
J
J.P. McGeehan
DOI：10.1109/LCOMM.2004.833797delete
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Abstract

Abstract

En 中文
This letter proposes a novel method for channel estimation in a single-carrier multiple input-multiple output (MIMO) system with frequency-domain equalization/detection. To this end, we construct novel short MIMO training sequences that have constant envelope in the time domain to preclude the peak-to-average power ratio problem encountered in many systems that utilize the frequency domain for data recovery. Simultaneously, the spectrum in the frequency domain is flat except for a grid of nulls for predefined frequency tones. Armed with these sequences, we provide an algorithm that is optimal in the least squares (LS) sense at a potentially low computational cost. Results show that the algorithm performs identically to other proposed LS techniques. Furthermore, the algorithm is extremely bandwidth efficient in that the total training overhead required to obtain full CSI is just one block.
Keywords:
channel estimation
MIMO
OFDM
SCFDE

Journal

IEEE Communications Letters cover
IEEE Communications Letters
IF:
4.4
Papers:
1.3W
Citations:
2.2W

Organization

No organization information available