A Blind Two-Stage Receiver for MIMO-CDMA Systems. (5th May 2011)

• Record Type: Journal Article
• Authors: Hwang, Fuh-Hsin; Lin, Tsui-Tsai
• Other Names: Ikeda H. Academic Editor.; Maaref A. Academic Editor.; Wei H.-L. Academic Editor.
• Is Part Of: ISRN communications and networking. Volume 2011(2011)
• Publication Date: 2011-05-05
• Subjects: Communication -- Periodicals; Computer networks -- Periodicals; Telecommunication -- Periodicals; Communication; Computer networks; Telecommunication; Electronic journals; Electronic journals; Periodicals; 004.6
• DOI: 10.5402/2011/147292
• Languages: English
• ISSNs: 2090-4355

Abstract

Abstract : A blind two-stage multiple-input multiple-output (MIMO) receiver is proposed for code-division multiple access (CDMA) systems utilizing space-time block coding (STBC) over a multipath fading channel. Specifically, in the first stage, a signal-blocked (SB) interference-blocked (IB) detector is first constructed for collection of the desired signals and suppression of multiple access interference (MAI). In the second-stage, a decision-directed scheme is developed to alleviate desired signal cancellation. Computer simulations demonstrate that the proposed blind receiver can achieve a reliable output signal-to-interference-plus-noise ratio (SINR) performance approximating that of the optimal minimum mean squared error (MMSE) receiver and can exhibit the robustness against the finite data sample effect.