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On the Relation Between PAPR and System Performance in Multicarrier Modulation

  • The high peak power in comparison to the average transmit power is one of the major long-standing problems in multicarrier modulation and is known as the PAPR (peak to average power ratio) problem. Many PAPR reduction methods have been devised and their comparison is usually based on the complementary cumulative distribution function (CCDF) of the PAPR. While this comparison is straightforward andThe high peak power in comparison to the average transmit power is one of the major long-standing problems in multicarrier modulation and is known as the PAPR (peak to average power ratio) problem. Many PAPR reduction methods have been devised and their comparison is usually based on the complementary cumulative distribution function (CCDF) of the PAPR. While this comparison is straightforward and easy to compute, its relationship with system performance metrics like the (uncoded) BER or the word error rate (WER) for coded systems is considerably more involved. We evaluate the impact of the PAPR on performance metrics like uncoded BER, EVM (error vector magnitude), mutual information and the WER for soft decoding. In this context, we find that system performance is not necessarily degraded by an increasing PAPR. We show that a high number of subcarriers, despite the corresponding high PAPR, is actually not a problem for the system performance and provide a simple explanation for this seemingly counter-intuitive fact.show moreshow less

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Metadaten
Author:Stephan PfletschingerORCiDGND, Ludwig Erhardt
Publisher:VDE Verlag
Place of publication:Berlin Offenbach
Year of Publication:2019
Pagenumber:6
ISBN:978-3-8007-4862-4
Language:English
Parent Title (English):12th International ITG Conference on Systems, Communications and Coding (SCC) 2019 · February 11 – 14, 2019 in Rostock, Germany
First Page:83
Last Page:88
Document Type:Conference Proceeding
Institutes:Bibliografie
Open Access:Zugriffsbeschränkt
Release Date:2020/01/21
Licence (German):License LogoEs gilt das UrhG
DOI:https://doi.org/10.30420/454862015