Maximum likelihood estimation of carrier frequency offset in correlated MIMO OFDM systems

Nian Zeng Xiang, Ali Ghrayeb

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper discusses maximum likelihood (ML) carrier frequency offset (CFO) estimation based on virtual subcarriers for multiple-input multiple-output (MIMO) systems employing orthogonal frequency division multiplexing (OFDM) over Rayleigh fading channels. In our ML approach, the channel and data are treated as random variables, unlike existing ML approaches in which the channel and data are treated as unknown constants. This in turn enables us to incorporate the spatial correlation and transmit data correlation into the analysis. In particular, we derive closed-form cost functions which can be used to accurately estimate the CFO. We also derive the Cramér-Rao lower bounds (CRLBs) for these estimators. We show that the presence of these correlations does not impact the CFO estimation significantly, especially at high signal-to-noise ratio. We present several examples to support the analysis.

Original languageEnglish
Title of host publication2006 IEEE Workshop on Signal Processing Systems Design and Implementation, SIPS
Pages51-55
Number of pages5
DOIs
Publication statusPublished - 2006
Externally publishedYes
EventIEEE Workshop on Signal Processing Systems, SIPS 2006 - Banff, AB, Canada
Duration: 2 Oct 20064 Oct 2006

Other

OtherIEEE Workshop on Signal Processing Systems, SIPS 2006
CountryCanada
CityBanff, AB
Period2/10/064/10/06

Fingerprint

Maximum likelihood estimation
Orthogonal frequency division multiplexing
Maximum likelihood
Rayleigh fading
Random variables
Cost functions
Fading channels
Signal to noise ratio

ASJC Scopus subject areas

  • Signal Processing
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Xiang, N. Z., & Ghrayeb, A. (2006). Maximum likelihood estimation of carrier frequency offset in correlated MIMO OFDM systems. In 2006 IEEE Workshop on Signal Processing Systems Design and Implementation, SIPS (pp. 51-55). [4161824] https://doi.org/10.1109/SIPS.2006.352554

Maximum likelihood estimation of carrier frequency offset in correlated MIMO OFDM systems. / Xiang, Nian Zeng; Ghrayeb, Ali.

2006 IEEE Workshop on Signal Processing Systems Design and Implementation, SIPS. 2006. p. 51-55 4161824.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Xiang, NZ & Ghrayeb, A 2006, Maximum likelihood estimation of carrier frequency offset in correlated MIMO OFDM systems. in 2006 IEEE Workshop on Signal Processing Systems Design and Implementation, SIPS., 4161824, pp. 51-55, IEEE Workshop on Signal Processing Systems, SIPS 2006, Banff, AB, Canada, 2/10/06. https://doi.org/10.1109/SIPS.2006.352554
Xiang NZ, Ghrayeb A. Maximum likelihood estimation of carrier frequency offset in correlated MIMO OFDM systems. In 2006 IEEE Workshop on Signal Processing Systems Design and Implementation, SIPS. 2006. p. 51-55. 4161824 https://doi.org/10.1109/SIPS.2006.352554
Xiang, Nian Zeng ; Ghrayeb, Ali. / Maximum likelihood estimation of carrier frequency offset in correlated MIMO OFDM systems. 2006 IEEE Workshop on Signal Processing Systems Design and Implementation, SIPS. 2006. pp. 51-55
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