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1754 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 54, NO. 10, OCTOBER 2006 Optimal Training Signals for MIMO OFDM Channel Estimation
 

Summary: 1754 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 54, NO. 10, OCTOBER 2006
Optimal Training Signals for MIMO OFDM Channel Estimation
in the Presence of Frequency Offset and Phase Noise
Hlaing Minn, Member, IEEE, Naofal Al-Dhahir, Senior Member, IEEE, and Yinghui Li, Student Member, IEEE
Abstract--We develop robust mean-square error (MSE)-op-
timal training signal designs for multiple-input multiple-output
orthogonal frequency-division multiplexing channel estimation
with frequency offset and phase noise (PN), and present analytical
and simulation results for the frequency-offset and PN effects
on channel estimation. The proposed designs are more advanta-
geous for moderate-to-high values of signal-to-noise ratio (SNR),
residual frequency offset, and PN level. At SNR = 10 dB, the
normalized MSE reductions of our proposed training signals at
normalized frequency offset jvj = 0:1; 0:5 are about 9 and 19 dB,
respectively, for one transmit antenna, and 6 and 11 dB for two
transmit antennas.
Index Terms--Channel estimation, frequency offset, mul-
tiple-input multiple-output (MIMO), orthogonal frequency-di-
vision multiplexing (OFDM), phase noise (PN), pilot design,
training-signal design.

  

Source: Al-Dhahir, Naofal - Department of Electrical Engineering, University of Texas at Dallas
Minn, Hlaing - Department of Electrical Engineering, University of Texas at Dallas

 

Collections: Engineering