An evaluation of successive pilot decontamination in massive MIMO

An evaluation of successive pilot decontamination in massive MIMO

Authors

DOI:

https://doi.org/10.5433/1679-0375.2018v39n2p107

Keywords:

Massive MIMO, Pilot contamination, Mitigate, Coordination of cells

Abstract

The demand for higher data rates can be satisfied by the spectral efficiency (SE) improvement offered by Massive multiple-input multiple-output (M-MIMO) systems. However, the pilot contamination remains as a fundamental issue to obtain the paramount SE in such systems. This propitiated the research of several methods to mitigate pilot contamination. One of these procedures is based on the coordination of the cells, culminating in proposals with multiple pilot training phases. This paper aims to expand the results of the original paper, whereby the concepts of large pilot training phases were offered. The evaluation of such method was conducted through more comprehensible numerical results, in which a large number of antennas were assumed and more rigorous SE expressions were used. The channel estimation approaches relying on multiple pilot training phases were considered cumbersome for implementation and an uninteresting solution to overcome pilot contamination; contradicting the results presented in the genuine paper.

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Author Biographies

Victor Croisfelt Rodrigues, Universidade Estadual de Londrina

Student, Bachelors Degree, Engenharia Elétrica, UEL, Londrina, PR

Taufik Abrão, Universidade Estadual de Londrina

Dr. Prof. Depto. de Engenharia Elétrica, UEL, Londrina, PR

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Published

2018-12-29

How to Cite

Rodrigues, V. C., & Abrão, T. (2018). An evaluation of successive pilot decontamination in massive MIMO. Semina: Ciências Exatas E Tecnológicas, 39(2), 107–114. https://doi.org/10.5433/1679-0375.2018v39n2p107

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Section

Original Article

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