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

Shahram Shahbazpanahi, Alex B. Gershman, Georgios B. Giannakis

Research output: Contribution to conferencePaper

5 Scopus citations

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.

Original languageEnglish (US)
Pages363-367
Number of pages5
DOIs
StatePublished - Dec 1 2005
Event2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005 - New York, NY, United States
Duration: Jun 5 2005Jun 8 2005

Other

Other2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005
CountryUnited States
CityNew York, NY
Period6/5/056/8/05

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    Shahbazpanahi, S., Gershman, A. B., & Giannakis, G. B. (2005). Joint blind channel and carrier frequency offset estimation in orthogonally space-time block coded mimo systems. 363-367. Paper presented at 2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005, New York, NY, United States. https://doi.org/10.1109/SPAWC.2005.1506048