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Journals / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi / 2024 / Cilt: 39 Sayı: 3

Improving the BER and PAPR performances of conventional OFDM waveform with sequential LLWT-PTS-AC method

Sıralı LLWT-PTS-AC yöntemi ile klasik OFDM dalga formunun BER ve PAPR performanslarının iyileştirilmesi

Bekir Tengizler(NUH NACI YAZGAN UNIVERSITY)0000-0002-9017-7672
Efe Kaan Çalışkan(NUH NACI YAZGAN UNIVERSITY)0000-0002-2506-5690
Alihan Gülbaz(NUH NACI YAZGAN UNIVERSITY)0000-0003-2831-5058
Ali Özen(NUH NACI YAZGAN UNIVERSITY, FACULTY OF ENGINEERING)0000-0003-3232-3181
Pages
1837–1848
Publication Date
2024-05-20
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

When the results are examined, it is seen that the PAPR and BER performances of the classical OFDM system have increased satisfactorily.

📌 3 Key Takeaways

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Objective & Hypothesis:One of the major disadvantages of multi-carrier (MC) radio communication systems is the high peak-to-average power ratio (PAPR).
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Key Findings & Data:In the research literature, many methods, such as amplitude clipping (AC) and filtering, coding, interleaving, tone reservation (TR), tone addition (TI), partial transmit sequence (PTS) and selected mapping (SLM) methods, have been presented to decrease the high PAPR values of MC radio communication systems.
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Conclusion & Impact:When the results are examined, it is seen that the PAPR and BER performances of the classical OFDM system have increased satisfactorily.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:OFDM dalga formu · PAPR azaltma · Lifting dalgacık dönüşümü

Abstract

One of the major disadvantages of multi-carrier (MC) radio communication systems is the high peak-to-average power ratio (PAPR). Orthogonal frequency division multiplexing (OFDM) system, which is accepted by many standards, is also affected by this disadvantage. In the research literature, many methods, such as amplitude clipping (AC) and filtering, coding, interleaving, tone reservation (TR), tone addition (TI), partial transmit sequence (PTS) and selected mapping (SLM) methods, have been presented to decrease the high PAPR values of MC radio communication systems. In addition, transformations such as fast Walsh Hadamard transform (FWHT) and discrete wavelet transform (DWT) applied to systems are proposed in order to increase other performances of MC radio communication systems using these PAPR reduction methods. In this study, it is suggested to combine PTS and AC technique with Lifting wavelet transform (LLWT) using Lazy wavelet to improve both bit error rate (BER) performance and PAPR performance of MC wireless communication systems. In this article, the LLWT-PTS-AC method, which is the combination of PTS and AC technique with LLWT conversion, which is proposed in this study for the first time, has been applied to the classical OFDM waveform to eliminate the disadvantages of MC radio communication systems, and remarkable results have been obtained. When the results are examined, it is seen that the PAPR and BER performances of the classical OFDM system have increased satisfactorily.

Özet

Çok taşıyıcılı (MC) telsiz iletişim sistemlerinin en büyük dezavantajlarından birisi yüksek tepe-ortalama güç oranı (PAPR)’dır. Pek çok standartta kabul edilen dikgen frekans bölmeli çoğullama (OFDM) sistemi de bu dezavantajdan etkilenmektedir. Araştırma literatüründe MC telsiz iletişim sistemlerinin yüksek PAPR seviyelerini azaltmak için genlik kırpma (AC) ve filtreleme, kodlama, serpiştirme, ton rezervasyonu (TR), ton ekleme (TI), kısmi iletim dizisi (PTS) ve seçilmiş haritalama (SLM) teknikleri gibi pek çok yöntem sunulmuştur. Bunlara ek olarak, bu PAPR azaltma yöntemlerini kullanan MC telsiz iletişim sistemlerinin diğer performanslarının iyileştirilmesi amacıyla sistemlere uygulanan hızlı Walsh Hadamard dönüşümü (FWHT) ve ayrık dalgacık dönüşümü (DWT) gibi dönüşümlerde sunulmuştur. Bu çalışmada, MC telsiz iletişim sistemlerinin hem bit hata oranı (BER) performansını hem de PAPR başarımını iyileştirmek için PTS ve AC tekniği ile Lazy dalgacığını kullanan Lifting dalgacık dönüşümünün (LLWT) birleştirilmesi önerilmektedir. Bu makalede, ilk defa bu çalışmada önerilen PTS ve AC tekniği ile LLWT dönüşümünün birleşimi olan LLWT-PTS-AC yöntemi, MC telsiz iletişim sistemlerinin dezavantajlarını ortadan kaldırmak için klasik OFDM dalga formuna uygulanmıştır ve kayda değer sonuçlar elde edilmiştir. Sonuçlar incelendiği zaman, klasik OFDM sisteminin PAPR ve BER başarımlarının tatmin edici ölçüde arttığı görülmektedir.

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Cite This Article

Tengizler, B., Çalışkan, E. K., Gülbaz, A., Özen, A. (2024). Improving the BER and PAPR performances of conventional OFDM waveform with sequential LLWT-PTS-AC method. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, Cilt: 39 Sayı: 3, 1837–1848. https://doi.org/10.17341/gazimmfd.1142173

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