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dc.contributor.authorHu, Suen
dc.contributor.authorLiu, Zilongen
dc.contributor.authorGuan, Yong Liangen
dc.contributor.authorJin, Chuanxueen
dc.contributor.authorHuang, Yixuanen
dc.contributor.authorWu, Jen-Mingen
dc.identifier.citationHu, S., Liu, Z., Guan, Y. L., Jin, C., Huang, Y., & Wu, J.-M. (2017). Training Sequence Design for Efficient Channel Estimation in MIMO-FBMC Systems. IEEE Access, 5, 4747-4758.en
dc.description.abstractThis paper is focused on training sequence design for efficient channel estimation in multiple-input multiple-output filterbank multicarrier (MIMO-FBMC) communications using offset quadrature amplitude modulation (OQAM). MIMO-FBMC is a promising technique to achieve high spectrum efficiency as well as strong robustness against dispersive channels due to its feature of time-frequency localization. A salient drawback of FBMC/OQAM signals is that only real-field orthogonality can be kept, leading to the intrinsic imaginary interference being a barrier for high-performance channel estimations. Also, conventional channel estimations in the MIMO-FBMC systems mostly suffer from high training overhead especially for large number of transmit antennas. Motivated by these problems, in this paper, we propose a new class of training sequences, which are formed by concatenation of two identical zero-correlation zone sequences whose auto-correlation and cross correlation are zero within a time-shift window around the in-phase position. Since only real-valued symbols can be transmitted in MIMO-FBMC systems, we propose “complex training sequence decomposition (CTSD)” to facilitate the reconstruction of the complex-field orthogonality of MIMO-FBMC signals. Our simulations validate that the proposed CTSD is an efficient channel estimation approach for practical preamble-based MIMO-FBMC systems.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.format.extent12 p.en
dc.relation.ispartofseriesIEEE Accessen
dc.rights© 2017 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See for more information.en
dc.subjectMultiple-input Multiple-output (MIMO)en
dc.subjectFilterbank Multicarrier (FBMC)en
dc.titleTraining Sequence Design for Efficient Channel Estimation in MIMO-FBMC Systemsen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.description.versionPublished versionen
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