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Reduction of Signal Envelope Fluctuations in OFDM Systems Using ACE with Double Extension

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Abstract

The Active Constellation Extension (ACE) method reduces the signal envelope fluctuations by means of constellation extension while maintaining the minimum Euclidean distance. However, the reduction performance of signal envelope fluctuations depends on the number of iterative computations, so it is very important to support lower complexity and improve its performance. In this paper, it is presented a new approach to reduce signal envelope fluctuations by adopting the Double Extension (DE) technique and to achieve its low computational complexity. In the ACE–DE (Active Constellation Extension with Double Extension), the anti-peak signal decomposition based extension is effectively applied after the traditional ACE. To achieve the low complexity, the modified peak test algorithm is also proposed. Simulation results show that the proposed ACE–DE achieves performance gain in terms of signal envelope fluctuation, bit error rate and out-of-band radiation.

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All data generated and analyzed during this study are included in this manuscript and its supplementary information files.

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Acknowledgements

I would like to thank members of our department for proof reading the article. This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

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Authors and Affiliations

  1. Communication Faculty, Kim Chaek University of Technology, Pyongyang, Democratic People’s Republic of Korea

    Ji-Hyon Jon & Chung-Won Han

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  1. Ji-Hyon Jon
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by JHJ, CWH. The first draft of the manuscript was written by JHJ and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Ji-Hyon Jon.

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Jon, JH., Han, CW. Reduction of Signal Envelope Fluctuations in OFDM Systems Using ACE with Double Extension. Wireless Pers Commun 132, 1177–1192 (2023). https://doi.org/10.1007/s11277-023-10652-5

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