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Phase-Noise Compensation for OFDM Systems Exploiting Coherence Bandwidth : Modeling, Algorithms, and Analysis

Chung, Min Keun LU ; Liu, Liang LU and Edfors, Ove LU (2022) In IEEE Transactions on Wireless Communications 21(5). p.3040-3056
Abstract

Phase-noise (PN) estimation and compensation are crucial in millimeter-wave (mmWave) communication systems to achieve high reliability. The PN estimation, however, suffers from high computational complexity due to its fundamental characteristics, such as spectral spreading and fast-varying fluctuations. In this paper, we propose a new framework for low-complexity PN compensation in orthogonal frequency-division multiplexing systems. The proposed framework also includes a pilot allocation strategy to minimize its overhead. The key ideas are to exploit the coherence bandwidth of mmWave systems and to approximate the actual PN spectrum with its dominant components, resulting in a non-iterative solution by using linear minimum mean... (More)

Phase-noise (PN) estimation and compensation are crucial in millimeter-wave (mmWave) communication systems to achieve high reliability. The PN estimation, however, suffers from high computational complexity due to its fundamental characteristics, such as spectral spreading and fast-varying fluctuations. In this paper, we propose a new framework for low-complexity PN compensation in orthogonal frequency-division multiplexing systems. The proposed framework also includes a pilot allocation strategy to minimize its overhead. The key ideas are to exploit the coherence bandwidth of mmWave systems and to approximate the actual PN spectrum with its dominant components, resulting in a non-iterative solution by using linear minimum mean squared-error estimation. The proposed method obtains a reduction of more than 2.5× in total complexity, as compared to the existing methods. Furthermore, we derive closed-form expressions for normalized mean squared-errors (NMSEs) as a function of critical system parameters, which help in understanding the NMSE behavior in low and high signal-to-noise ratio regimes. Lastly, we study a trade-off between performance and pilot-overhead to provide insight into an appropriate approximation of the PN spectrum.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Coherence bandwidth, millimeter-wave (mmWave) systems, orthogonal frequency-division multiplexing (OFDM), phase noise, pilot
in
IEEE Transactions on Wireless Communications
volume
21
issue
5
pages
3040 - 3056
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85118232089
ISSN
1536-1276
DOI
10.1109/TWC.2021.3117782
language
English
LU publication?
yes
additional info
Publisher Copyright: IEEE
id
a9e28b8c-4dba-4649-815a-83da6778b5f1
date added to LUP
2021-11-24 14:09:50
date last changed
2022-06-30 17:42:22
@article{a9e28b8c-4dba-4649-815a-83da6778b5f1,
  abstract     = {{<p>Phase-noise (PN) estimation and compensation are crucial in millimeter-wave (mmWave) communication systems to achieve high reliability. The PN estimation, however, suffers from high computational complexity due to its fundamental characteristics, such as spectral spreading and fast-varying fluctuations. In this paper, we propose a new framework for low-complexity PN compensation in orthogonal frequency-division multiplexing systems. The proposed framework also includes a pilot allocation strategy to minimize its overhead. The key ideas are to exploit the coherence bandwidth of mmWave systems and to approximate the actual PN spectrum with its dominant components, resulting in a non-iterative solution by using linear minimum mean squared-error estimation. The proposed method obtains a reduction of more than 2.5&amp;#x00D7; in total complexity, as compared to the existing methods. Furthermore, we derive closed-form expressions for normalized mean squared-errors (NMSEs) as a function of critical system parameters, which help in understanding the NMSE behavior in low and high signal-to-noise ratio regimes. Lastly, we study a trade-off between performance and pilot-overhead to provide insight into an appropriate approximation of the PN spectrum.</p>}},
  author       = {{Chung, Min Keun and Liu, Liang and Edfors, Ove}},
  issn         = {{1536-1276}},
  keywords     = {{Coherence bandwidth; millimeter-wave (mmWave) systems; orthogonal frequency-division multiplexing (OFDM); phase noise; pilot}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{3040--3056}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Transactions on Wireless Communications}},
  title        = {{Phase-Noise Compensation for OFDM Systems Exploiting Coherence Bandwidth : Modeling, Algorithms, and Analysis}},
  url          = {{http://dx.doi.org/10.1109/TWC.2021.3117782}},
  doi          = {{10.1109/TWC.2021.3117782}},
  volume       = {{21}},
  year         = {{2022}},
}