Distributed space-time block coding (STBC) is a promising technique for future broadband wireless communication system, because of its substantially improving the reliability of wireless channel by exploiting cooperat...
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Distributed space-time block coding (STBC) is a promising technique for future broadband wireless communication system, because of its substantially improving the reliability of wireless channel by exploiting cooperative spatial diversity. In this study, the authors propose a novel two time slots distributed time-reversal STBC scheme for amplify-and-forward relay-assisted single-carrier (SC) block transmissions over frequency-selective fading channel. They first exploit the discrete Fourier transform extended properties to construct a linear precoding matrix. They then employ a low-complexity suboptimal frequency domain decision feedback equalisation (FD-DFE) to collect potential multipath diversity at high signal-to-noise ratio. Simulation results demonstrate that the proposed scheme provides better performance than the conventional distributed SC-STBC scheme with minimum-mean-square error FD linear equalisation.
作者：
Yang, X. M.Xiong, Y.Chinese Acad Sci
Shanghai Res Ctr Wireless Commun Shanghai Inst Microsyst & Informat Technol Shanghai 200335 Peoples R China
linearprecoding by gleaning energy from known multiple-antenna interference is able to achieve lower error rate than conventional schemes with interference zeroing under multiple input multiple output (MIMO) broadcas...
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linearprecoding by gleaning energy from known multiple-antenna interference is able to achieve lower error rate than conventional schemes with interference zeroing under multiple input multiple output (MIMO) broadcast channels. Presented are modified constructions for a linear precoding matrix by separately evaluating the interference from each MIMO link. Analysis and simulation show that more interference energy can be exploited compared to existing methods, which leads to more diversity gain.
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