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Performance evaluation of compansion-based clipped OFDM systems.

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Title: Performance evaluation of compansion-based clipped OFDM systems.
Authors: Pfletschinger, Stephan1 (AUTHOR) stephan.pfletschinger@hs-offenburg.de, Dietl, Guido2 (AUTHOR)
Source: EURASIP Journal on Wireless Communications & Networking. 10/17/2024, Vol. 2024 Issue 1, p1-15. 15p.
Subjects: Modulation coding, Error rates, Physical mobility, Multiplexing, Signals & signaling, Signal-to-noise ratio
Abstract: The peak-to-average power ratio (PAPR), commonly used to describe the amplitude variations of an OFDM (orthogonal frequency-division multiplex) signal, does not accurately reflect its impact on the system performance. This paper applies the mutual information as a metric to assess the effects of nonlinear PAPR reduction schemes on the performance of OFDM systems. Evaluation of the achieved mutual information shows that a significant capacity loss from clipping occurs only at high SNR (signal-to-noise ratio) and a simple compression/expansion technique is proposed to achieve close to optimal performance in this regime. The effectiveness of this method is validated through WER (word error rate) simulations with several modulation and coding schemes. [ABSTRACT FROM AUTHOR]
Copyright of EURASIP Journal on Wireless Communications & Networking is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Performance evaluation of compansion-based clipped OFDM systems.
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  Data: <searchLink fieldCode="AR" term="%22Pfletschinger%2C+Stephan%22">Pfletschinger, Stephan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> stephan.pfletschinger@hs-offenburg.de</i><br /><searchLink fieldCode="AR" term="%22Dietl%2C+Guido%22">Dietl, Guido</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="DE" term="%22Modulation+coding%22">Modulation coding</searchLink><br /><searchLink fieldCode="DE" term="%22Error+rates%22">Error rates</searchLink><br /><searchLink fieldCode="DE" term="%22Physical+mobility%22">Physical mobility</searchLink><br /><searchLink fieldCode="DE" term="%22Multiplexing%22">Multiplexing</searchLink><br /><searchLink fieldCode="DE" term="%22Signals+%26+signaling%22">Signals & signaling</searchLink><br /><searchLink fieldCode="DE" term="%22Signal-to-noise+ratio%22">Signal-to-noise ratio</searchLink>
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  Label: Abstract
  Group: Ab
  Data: The peak-to-average power ratio (PAPR), commonly used to describe the amplitude variations of an OFDM (orthogonal frequency-division multiplex) signal, does not accurately reflect its impact on the system performance. This paper applies the mutual information as a metric to assess the effects of nonlinear PAPR reduction schemes on the performance of OFDM systems. Evaluation of the achieved mutual information shows that a significant capacity loss from clipping occurs only at high SNR (signal-to-noise ratio) and a simple compression/expansion technique is proposed to achieve close to optimal performance in this regime. The effectiveness of this method is validated through WER (word error rate) simulations with several modulation and coding schemes. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of EURASIP Journal on Wireless Communications & Networking is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: 10/17/2024
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