Low-complexity maximum-likelihood decoder for four-transmit-antenna quasi-orthogonal space-time block code |
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Authors: | Minh-Tuan Le Van-Su Pham Linh Mai Giwan Yoon |
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Institution: | Sch. of Eng., Inf. & Commun. Univ., Taejon, South Korea; |
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Abstract: | This letter proposes a very low-complexity maximum-likelihood (ML) detection algorithm based on QR decomposition for the quasi-orthogonal space-time block code (QSTBC) with four transmit antennas, called the LC-ML decoder. The proposed algorithm enables the QSTBC to achieve ML performance with significant reduction in computational load for any high-level modulation scheme. |
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