Multiuser Detection for QO-STBC MC-CDMA MIMO Systems

Jung-Lang Yu; Chun-Hsien Wu

ChinaCom2009-Signal Processing for Communications Symposium

Research Article

Multiuser Detection for QO-STBC MC-CDMA MIMO Systems

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/CHINACOM.2009.5339928,
    author={Jung-Lang Yu and Chun-Hsien Wu},
    title={Multiuser Detection for QO-STBC MC-CDMA MIMO Systems},
    proceedings={ChinaCom2009-Signal Processing for Communications Symposium},
    publisher={IEEE},
    proceedings_a={CHINACOM2009-SPC},
    year={2009},
    month={11},
    keywords={MC-CDMA; MIMO; QO-STBC; MOE; Multiuser Detection},
    doi={10.1109/CHINACOM.2009.5339928}
}

Jung-Lang Yu
Chun-Hsien Wu
Year: 2009
Multiuser Detection for QO-STBC MC-CDMA MIMO Systems
CHINACOM2009-SPC
IEEE
DOI: 10.1109/CHINACOM.2009.5339928

Jung-Lang Yu¹, Chun-Hsien Wu²

1: Department of Electrical Engineering Fu Jen Catholic University Taipei Hsien 24205, Taiwan
2: Department of Electronics Engineering Fu Jen Catholic University Taipei Hsien 24205, Taiwan

Abstract

The multi-carrier code-division multiple-access (MC-CDMA) multiple-input multiple-output (MIMO) system with quasi-orthogonal space-time block codes (QO-STBC) is studied in this paper. Considering QO-STBC scheme that involves three or four transmit antennas, a subspace-based blind channel estimation is proposed. With the estimated channel coefficients, the minimum output energy (MOE) and eigenspace receivers are employed for symbol detection. The weight analyses are performed to reduce the system computational complexity. Besides, the forward backward averaging technique is presented to enhance the performance of multiuser detection.

Keywords: MC-CDMA; MIMO; QO-STBC; MOE; Multiuser Detection

Published: 2009-11-20
Publisher: IEEE
Modified: 2010-05-16

: http://dx.doi.org/10.1109/CHINACOM.2009.5339928