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OFDM Enhancements for 5G Based on Filtering and Windowing

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Multiple Access Techniques for 5G Wireless Networks and Beyond

Abstract

In this chapter, different variants envisioned for the 5G new radio (NR) waveform implementation are discussed, satisfying the 5G NR requirements for release 15 and beyond. We outline the limitations of conventional CP-OFDM in serving the potential use cases for NR. Two main classes of waveform preprocessing are considered to increase the spectral decay rate of CP-OFDM, namely windowing and filtering. Three waveforms are selected for the comparison, namely windowed overlap-add (WOLA) as a windowing technique, universal filtered orthogonal frequency division multiplex (UF-OFDM) and filtered orthogonal frequency division multiplex (f-OFDM) as subband filtering techniques. We outline the design principles of all three waveforms and discuss the overall performance and implementation aspects.

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Notes

  1. 1.

    Orthogonality here means that no crosstalk occurs in the detection process between the different subcarriers.

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Authors and Affiliations

  1. Nokia Bell Labs Stuttgart, Lorenzstrasse 10, Stuttgart, Germany

    Rana Ahmed, Frank Schaich & Thorsten Wild

Authors
  1. Rana Ahmed
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  2. Frank Schaich
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  3. Thorsten Wild
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Corresponding author

Correspondence to Rana Ahmed .

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Editors and Affiliations

  1. Villanova University, Villanova, Pennsylvania, USA

    Mojtaba Vaezi

  2. The University of Manchester, Manchester, United Kingdom

    Zhiguo Ding

  3. Princeton University, Princeton, New Jersey, USA

    H. Vincent Poor

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Ahmed, R., Schaich, F., Wild, T. (2019). OFDM Enhancements for 5G Based on Filtering and Windowing. In: Vaezi, M., Ding, Z., Poor, H. (eds) Multiple Access Techniques for 5G Wireless Networks and Beyond. Springer, Cham. https://doi.org/10.1007/978-3-319-92090-0_2

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  • DOI: https://doi.org/10.1007/978-3-319-92090-0_2

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  • Publisher Name: Springer, Cham

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  • Online ISBN: 978-3-319-92090-0

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