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Asymptotic SEP of MIMO beamforming in two-hop AF relaying systems

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Abstract

This paper derives an asymptotic average symbol error probability (SEP) expression for multipleinput multiple-output (MIMO) two-hop amplify-and-forward (AF) relay systems with optimal beamforming. The analysis at high signal-to-noise ratio (SNR) quantifies the diversity order and array gain, which are valid for any antenna numbers of the terminals and arbitrary channel fading models. It is also proved that the system performance is dominated by the relatively degraded one of the two-hop channels. Our results based on the simple expressions provide valuable insights into the performance and practical design considerations of MIMO AF networks.

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Authors and Affiliations

  1. School of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications, Nanjing, 210003, China

    YouHua Fu & Chen Liu

  2. School of Information Science and Engineering, Southeast University, Nanjing, 210096, China

    YuJie Han & LvXi Yang

  3. Department of Electrical and Computer Engineering, Concordia University, Montreal, H3G 1M8, Canada

    WeiPing Zhu

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  1. YouHua Fu
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  2. YuJie Han
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  3. LvXi Yang
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  4. WeiPing Zhu
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  5. Chen Liu
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Correspondence to YouHua Fu.

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Fu, Y., Han, Y., Yang, L. et al. Asymptotic SEP of MIMO beamforming in two-hop AF relaying systems. Sci. China Inf. Sci. 55, 377–383 (2012). https://doi.org/10.1007/s11432-011-4297-5

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  • DOI: https://doi.org/10.1007/s11432-011-4297-5

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