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Performance of Full Rate Non-Orthogonal STBC in Spatially Correlated MIMO Systems

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Abstract

Spatial correlation is a crucial impairment for practical Multiple Input Multiple Output (MIMO) wireless communication systems. It is important to consider spatial correlation between antennas in actual communication scenario at both sides, i.e. transmit and receive side. Furthermore, we have considered nonorthogonal full rate STBC in MIMO systems equipped with four transmit antennas and four receive antennas in a quasi-static Rayleigh fading channel. In this paper, Bit Error Rate (BER) performance of full rate non-orthogonal Space Time Block code (STBC) is obtained using simulations in MIMO wireless communication systems. Spatial correlation is assumed between antennas at both the transmitter and the receiver sides. For this analysis, we have considered various transmit antenna spacing values of dt = 0.1π, 0.2π, and 0.4π keeping fixed dr = 0.1π and various receive antenna spacing values of dr = 0.1π, 0.2π, and 0.4π keeping fixed dt = 0.1π. The obtained results show that the transmitting diversity is more serious than the receiving diversity in the spatially correlated antenna environment for the specified signal-to-noise ratio. This study will be useful for actual wireless communication implementation where spatial correlation antennas are present in the practical environment of the MIMO wireless communication system.

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Authors and Affiliations

  1. Charotar University of Science and Technology, Changa, India

    Sagar B. Patel

  2. Babaria Institute of Technology, Vadodara, India

    Jaymin Bhalani

  3. Nirma University, Ahmedabad, India

    Y. N. Trivedi

Authors
  1. Sagar B. Patel
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  2. Jaymin Bhalani
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  3. Y. N. Trivedi
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Correspondence to Sagar B. Patel.

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Sagar B. Patel, Jaymin Bhalani, and Y. N. Trivedi

The authors declare that they have no conflict of interest.

The initial version of this paper in Russian is published in the journal “Izvestiya Vysshikh Uchebnykh Zavedenii. Radioelektronika,” ISSN 2307-6011 (Online), ISSN 0021-3470 (Print) on the link http://radio.kpi.ua/article/view/S0021347020020041 with DOI: https://doi.org/10.20535/S0021347020020041

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Patel, S.B., Bhalani, J. & Trivedi, Y.N. Performance of Full Rate Non-Orthogonal STBC in Spatially Correlated MIMO Systems. Radioelectron.Commun.Syst. 63, 88–95 (2020). https://doi.org/10.3103/S0735272720020041

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  • DOI: https://doi.org/10.3103/S0735272720020041

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