Abstract

A frequency-domain channel estimation method is proposed for time-varying multiple-input multiple output (MIMO) single-carrier frequency-domain equalization (SC-FDE). The proposed method uses frequency-domain interpolation to obtain channel frequency responses of data blocks from estimated responses of two adjacent pilot blocks. It takes the channel temporal-spatial correlation into account to achieve minimum mean squared error (MMSE) estimation, thus improving the accuracy and effectiveness in high Doppler scenarios. The simulation results of the bit error rate (BER) performances show that the proposed method works well for fast time-varying channels with Doppler spread as high as 300 Hz while maintaining over 70% data efficiency.

Meeting Name

IEEE International Conference on Communications, 2008. ICC'08

Department(s)

Electrical and Computer Engineering

Sponsor(s)

United States. Office of Naval Research
University of Missouri Research Board

Keywords and Phrases

Doppler Shift; MIMO Communication; Channel Estimation; Correlation Methods; Equalisers; Error Statistics; Frequency Response; Frequency-Domain Analysis; Interpolation; Least Mean Squares Methods; Time-Varying Channels

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2008 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Full Text Link

Share

 
COinS