Finite-SNR Diversity–Multiplexing Tradeoff with Accurate Performance Analysis for Fully Correlated Rayleigh MIMO Channels

Zheng and Tse were the first to discover the fundamental diversity–multiplexing tradeoff (DMT) that occurs in multiple-input multiple-output (MIMO) systems. Their research was limited to infinite signal-to-noise ratio (SNR) situations. Later, research was also conducted on finite-SNR situations; however, this research had significant problems with coarse approximation. In this paper, the authors propose more accurate approximations of the finite-SNR DMT and the outage probability for Rayleigh fading MIMO channels to solve these problems. The proposed formulas provide more general solutions that are applicable not only to uncorrelated and semicorrelated channels but also to fully correlated channels, which have not been considered in the literature. Utilizing the proposed finite-SNR DMT, the authors further investigate the influence of the deviation of the finite-SNR DMT on system performance. The authors also derived an accurate SNR offset quantity, which provides a link for transformation of finite-SNR DMT to actual outage probability. Finally, the authors present computer simulation results for illustration and comparison to confirm the validity of the research work.

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  • English

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  • Accession Number: 01619784
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 22 2016 4:47PM