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Pilot Contamination in Massive MIMO Communications

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5G and Beyond Wireless Systems

Part of the book series: Springer Series in Wireless Technology ((SSWT))

Abstract

Massive multiple-input multiple-output (MIMO) has been considered as one of the most promising technologies for addressing high data rates and capacity for cellular networks in the fifth generation and beyond. In massive MIMO, the base station (BS) requires complete and accurate channel state information (CSI) for realizing the benefits of massive MIMO technology. The CSI can be obtained either through feedback from users or channel reciprocity technique. The use of non-orthogonal pilot sequences, sent by the users for determining CSI, has been the main source of pilot contamination in the uplink data communications. Various pilot contamination scenarios and their possible solutions have been extensively studied in the last few years. In this chapter, recent works in the area of mitigating the effects of pilot contamination have been presented and analyzed. Some of the higher throughput resulting algorithms and their capabilities in eliminating the effects of pilot contamination have been studied in detail.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, National Institute of Technology Silchar, Silchar, India

    Abhinaba Dey, Prabina Pattanayak & Devendra Singh Gurjar

Authors
  1. Abhinaba Dey
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  2. Prabina Pattanayak
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  3. Devendra Singh Gurjar
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Corresponding author

Correspondence to Prabina Pattanayak .

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Editors and Affiliations

  1. Department of Electronics and Telecommunication Engineering, SVKM’s NMIMS (Deemed to be University) Shirpur Campus, Shirpur, India

    Manish Mandloi

  2. Department of Electronics and Communication Engineering, National Institute of Technology Silchar, Silchar, India

    Devendra Gurjar

  3. Department of Electronics and Communication Engineering, National Institute of Technology Silchar, Silchar, India

    Prabina Pattanayak

  4. Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, SK, Canada

    Ha Nguyen

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Dey, A., Pattanayak, P., Singh Gurjar, D. (2021). Pilot Contamination in Massive MIMO Communications. In: Mandloi, M., Gurjar, D., Pattanayak, P., Nguyen, H. (eds) 5G and Beyond Wireless Systems. Springer Series in Wireless Technology. Springer, Singapore. https://doi.org/10.1007/978-981-15-6390-4_2

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  • DOI: https://doi.org/10.1007/978-981-15-6390-4_2

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