A Full-Diversity Full-Rate Space-Time Block Code Design for Three Transmit Antennas
Inha University, Chemulpo, Incheon, South KoreaIEICE Transactions on Communications (Impact Factor: 0.23). 04/2006; E89B(4). DOI: 10.1093/ietcom/e89-b.4.1430
A design of non-orthogonal 3 × 3 space-time block code (STBC) is proposed. The proposed design achieves full rate, full level diversity, and maximum coding gain by symbol rotation (SR) method. In addition, the proposed scheme has lower encoding complexity than the unitary constellation-rotation (CR) STBC, while two methods exhibit the same bit error rate (BER) performance in Rayleigh fading channel.
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ABSTRACT: We present a new approach to the blind detection of full rate space-time block coded transmissions. Our method is based on linear programming and is globally convergent. We exploit the implicit structure of space-time block codes to cast the problem as linear programming to be solved efficiently. Unlike several known methods, the proposed technique is applicable to full-rate space-time block codes such as the popular Alamouti orthogonal code and the quasi-orthogonal space time code. Moreover, we utilize the code structure of these full rate codes to achieve simultaneous detection of all coded data streams without relying on successive schemes that are prone to error propagation. For orthogonal space-time codes, our algorithm allows near maximum likelihood detection of orthogonal codes without channel knowledge. We also can generalize the application of the proposed receiver to be used with nonorthogonal codes. Our proposed algorithm can provide performance competitive with existing techniques without imposing any conditions on the number of receive antennas.IEEE Transactions on Signal Processing 11/2010; 58(11):5819-5834. DOI:10.1109/TSP.2010.2052611 · 2.79 Impact Factor
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ABSTRACT: We propose a new joint receiver for the blind detection of synchronous co-channel multiuser signals modulated with orthogonal space-time block codes (OSTBC). We exploit the algebraic structure of the orthogonal space-time block codes and the constellation feature of Quadrature Amplitude Modulation (QAM) signals to develop a blind zero-forcing (ZF) detector based on quadratic programming (QP) with desirable convergence properties. Focusing on high rate space-time block codes in syn- chronous co-channel multiuser systems, we propose a successive processing joint receiver based on the proposed blind detector with low computational complexity and fast convergence. For signal detection in single user MIMO systems, the proposed QP algorithm has performance similar to that of maximum- likelihood receiver with wireless channel information. Unlike many existing techniques, our new receiver is applicable to full- rate orthogonal space-time block codes such as the practically popular Alamouti code. Furthermore, our QP receiver for multiuser detection relaxes stringent conditions on the number of receive antennas of the multi-input-multi-output (MIMO) transceiver systems.IEEE Transactions on Wireless Communications 07/2011; 10(7):2171-2185. DOI:10.1109/TWC.2011.042211.100722 · 2.50 Impact Factor
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