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dc.contributor.authorChen, Hsiao-Yunen_US
dc.contributor.authorKu, Meng-Linen_US
dc.contributor.authorJou, Shyh-Jyeen_US
dc.contributor.authorHuang, Chia-Chien_US
dc.date.accessioned2014-12-08T15:07:08Z-
dc.date.available2014-12-08T15:07:08Z-
dc.date.issued2010-04-01en_US
dc.identifier.issn1549-8328en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TCSI.2009.2027629en_US
dc.identifier.urihttp://hdl.handle.net/11536/5604-
dc.description.abstractIn this paper, a robust channel estimator for high-mobility space-time block code-orthogonal frequency division multiplexing (STBC-OFDM) systems is proposed and applied in IEEE 802.16e systems. A high-performance two-stage channel estimation method is adopted. The proposed architecture reduces computational complexity effectively and improves 85.2% of the hardware implementation. The performances of the proposed design have been demonstrated through the simulation of an STBC-OFDM system with two transmit antennas and one receive antenna. At the vehicle speed of 120 and 240 km/hr for quadrature phase shift keying (QPSK) modulation, the proposed design can achieve the bit-error rate (BER) of about 10(-4) and 10(-3) without using channel coding. Moreover, it has significant performance improvement as compared with interpolation-based channel estimation methods. The proposed channel estimator implemented in 90 nm CMOS technology can support up to 29.03 Mbps (uncoded) downlink data transmission. The design only requires 859.6 K gates and dissipates 43.71 mW at 83.3 MHz operating frequency with 1 V power supply.en_US
dc.language.isoen_USen_US
dc.subjectChannel estimatoren_US
dc.subjectspace-time block codeen_US
dc.subjectorthogonal frequency division multiplexingen_US
dc.subjectIEEE 802.16een_US
dc.titleA Robust Channel Estimator for High-Mobility STBC-OFDM Systemsen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/TCSI.2009.2027629en_US
dc.identifier.journalIEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERSen_US
dc.citation.volume57en_US
dc.citation.issue4en_US
dc.citation.spage925en_US
dc.citation.epage936en_US
dc.contributor.department電機工程學系zh_TW
dc.contributor.department電信工程研究所zh_TW
dc.contributor.departmentDepartment of Electrical and Computer Engineeringen_US
dc.contributor.departmentInstitute of Communications Engineeringen_US
dc.identifier.wosnumberWOS:000276535200017-
dc.citation.woscount4-
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