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Average BER and Capacity Improvement in MIMO-OSTBC Systems Over \(\varvec{\eta}-\varvec{\mu}\) Fading Channels with Absolute SNR Scheduling

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Abstract

In this paper, we consider a multiple-input-multiple-output system employing orthogonal space time block codes over a generalized fading model, namely, \(\eta - \mu\) fading distribution. Simplified closed-form expressions for the probability density function and cumulative distribution function of the proposed system under absolute SNR scheduling have been derived in this paper. More specifically, new analytical expressions for average bit error rate and average channel capacity are derived for two cases: (a) independent and identically distributed (i.i.d) fading links and (b) independent and non-identically distributed (i.ni.d) fading links. Numerical evaluation shows improvement in system performance for various values of \(\eta\) in format 1 with increase in the (a) number of users (U), (b) number of transmit antennas (n T ), and (c) number of receive antennas (n R ). The proposed mathematical analysis is verified using MATLAB numerical results which demonstrate the accuracy of theoretical approach.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, SRM University, Kattankulathur, Tamilnadu, 603203, India

    S. Krithiga & S. Malarvizhi

  2. Department of Electrical and Computer Engineering, San Francisco State University, 1600 Holloway Avenue, San Francisco, CA, 94132, USA

    Vidhyacharan Bhaskar

Authors
  1. S. Krithiga
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  2. Vidhyacharan Bhaskar
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  3. S. Malarvizhi
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Correspondence to Vidhyacharan Bhaskar.

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Krithiga, S., Bhaskar, V. & Malarvizhi, S. Average BER and Capacity Improvement in MIMO-OSTBC Systems Over \(\varvec{\eta}-\varvec{\mu}\) Fading Channels with Absolute SNR Scheduling. Wireless Pers Commun 95, 4225–4242 (2017). https://doi.org/10.1007/s11277-017-4076-8

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  • DOI: https://doi.org/10.1007/s11277-017-4076-8

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