NDLI: Joint blind channel and carrier frequency offset estimation in orthogonally space-time block coded MIMO systems

Content Provider	IEEE Xplore Digital Library
Author	Shahbazpanahi, S. Gershman, A.B. Giannakis, G.B.
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. & Comput. Eng., McMaster Univ., Hamilton, Ont., Canada (Shahbazpanahi, S.; Gershman, A.B.)
Abstract	The problem of joint channel and carrier frequency offset (CFO) estimation is considered in the context of multiple-input multiple-output (MIMO) communication systems that use orthogonal space-time-block codes (OSTBCs). A new blind approach, is proposed to jointly estimate the channel matrix and the CFO. Our technique is based on a relaxed version of maximum likelihood (ML) estimator that ignores the finite alphabet constraint. Using such an approach, we show that the joint channel and CFO estimation problem is equivalent to finding the parameter estimates that maximize the principal eigenvalue of a certain data dependent matrix. Simulation results demonstrate that, despite relaxing the finite alphabet constraint, the performance of the proposed blind detection scheme can approach that of the coherent receiver, provided that there are sufficient data blocks available per channel realization.
Starting Page	363
Ending Page	367
File Size	818977
Page Count	5
File Format	PDF
ISBN	0780388674
DOI	10.1109/SPAWC.2005.1506048
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency estimation MIMO Maximum likelihood estimation Maximum likelihood decoding Parameter estimation Eigenvalues and eigenfunctions Transmitters Frequency synchronization Context Maximum likelihood detection
Content Type	Text
Resource Type	Article

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