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Study of LB-SE with Perfect CSI in Hyper MIMO

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Abstract

Analytical consideration of lower bound (LB) analysis of the spectral efficiency (SE) of downlink transmission of Hyper MIMO (H-MIMO) system is important to obtain insights in the role of various factors that are involved. In this paper, we derived a mathematical expression for lower bound of the SE of an H-MIMO system with linear precoding techniques such as zero-forcing (ZF) and minimum mean square error (MMSE). The analysis of SE considers three joint user and antenna scheduling algorithms such as semi-orthogonal, random, and distance based user scheduling algorithms, whereas the antennas are selected based on maximum SNR with scheduled users. The channel between a user and a transmitter is assumed to have characteristics of small and large scale fading (SSF and LSF) with Rayleigh distributed block fading model. We investigate the effect of variation of transmit power, number of base station antennas M, and the radius of the cell on the SE. We simulate the downlink transmission of H-MIMO system and compare the simulation and analytical results. It is observed that the trends of variation of both results with the variation of different factors are similar, and the difference between the simulated and analytical LB-SE is approximately 1–1.5 bits. In this case the analytical LB is the smaller of the two.

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Authors and Affiliations

  1. North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh, India

    Tasher Ali Sheikh, Joyatri Bora & Md. Anwar Hussain

Authors
  1. Tasher Ali Sheikh
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  2. Joyatri Bora
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  3. Md. Anwar Hussain
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Corresponding authors

Correspondence to Tasher Ali Sheikh, Joyatri Bora or Md. Anwar Hussain.

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The authors declare that they have no conflict of interest.

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Additional Information

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/S0021347019100017 with DOI: https://doi.org/10.20535/S0021347019100017.

Russian Text © The Author(s), 2019, published in Izvestiya Vysshikh Uchebnykh Zavedenii, Radioelektronika, 2019, Vol. 62, No. 10, pp. 579–592.

This work is financially supported by Visvervaraya PhD Scheme Government of India (Grant No. PhD-MLA-4(96)/2015–2016).

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Sheikh, T.A., Bora, J. & Hussain, M.A. Study of LB-SE with Perfect CSI in Hyper MIMO. Radioelectron.Commun.Syst. 62, 487–500 (2019). https://doi.org/10.3103/S0735272719100017

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  • DOI: https://doi.org/10.3103/S0735272719100017

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