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Journals / Mühendislik Bilimleri ve Araştırmaları Dergisi / 2026 / Cilt: 8 Sayı: 2

Performance Analysis of AFDM Systems using Different Detection and Modulation Schemes in Weibull Fading Channels

Weibull Sönümlemeli Kanallarda Farklı Algılama ve Modülasyon Çeşitleri Kullanan AFDM Sistemlerin Başarım Analizi

Ayça Yıldız(ERCİYES ÜNİVERSİTESİ, FEN BİLİMLERİ ENSTİTÜSÜ)0000-0003-1086-0074
İbrahim Develi(ERCİYES ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ)0000-0001-5878-677X
Büşra Ceniklioğlu(UŞAK ÜNİVERSİTESİ, TEKNİK BİLİMLER MESLEK YÜKSEKOKULU)0000-0002-2850-2462
Pages
246–253
Publication Date
2026-10-27
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AI Summary & Key Takeaways

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

Simulation results show that AFDM exhibits effective performance in Weibull channels, and that ML and LLR detectors, in particular, provide lower BER values.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, the bit error rate (BER) performance of the Afin Frequency Division Multiplexing (AFDM) system which is intended for use in high-mobility wireless communication systems in Weibull attenuated channels was comprehensively investigated.
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Key Findings & Data:The performance of Zero Force (ZF), Minimum Mean Square Error (MMSE), Log Odds Ratio (LLR), and Maximum Likelihood (ML) detectors is compared.
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Conclusion & Impact:Simulation results show that AFDM exhibits effective performance in Weibull channels, and that ML and LLR detectors, in particular, provide lower BER values.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:AFDM · Weibull Sönümlemeli Kanal · BER

Abstract

In this study, the bit error rate (BER) performance of the Afin Frequency Division Multiplexing (AFDM) system which is intended for use in high-mobility wireless communication systems in Weibull attenuated channels was comprehensively investigated. The performance of Zero Force (ZF), Minimum Mean Square Error (MMSE), Log Odds Ratio (LLR), and Maximum Likelihood (ML) detectors is compared. Furthermore, the effects of the shape (β) and scale (λ) parameters of the Weibull channel, as well as BPSK, 4-QAM, 16-QAM, and 64-QAM modulations, on system performance are evaluated. Simulation results show that AFDM exhibits effective performance in Weibull channels, and that ML and LLR detectors, in particular, provide lower BER values. It was also observed that increasing the β and λ parameters improves system performance, while error rates increase at higher modulation levels, as expected. The results show that AFDM is a suitable candidate for future wireless communication systems in high mobility scenarios with Weibull fading.

Özet

Bu araştırmada, yüksek mobiliteli kablosuz haberleşme sistemlerinde kullanılması öngörülen Afin Frekans Bölmeli Çoğullama (AFDM) sisteminin Weibull sönümlemeli kanallardaki bit hata oranı (BER) performansı kapsamlı olarak incelenmiştir. Çalışma kapsamında Sıfır Zorlama (ZF), Minimum Ortalama Karesel Hata (MMSE), Log Olasılık Oranı (LLR) ve Maksimum Olabilirlik (ML) dedektörlerinin performansları karşılaştırılmıştır. Ayrıca Weibull kanalının şekil (β) ve ölçek (λ) parametreleri ile BPSK, 4-QAM, 16-QAM ve 64-QAM modülasyonlarının sistem başarımına etkileri değerlendirilmiştir. Benzetim sonuçları, AFDM'in Weibull kanallarında etkin performans sergilediğini ve özellikle ML ile LLR dedektörlerinin daha düşük BER değerleri sağladığını göstermektedir. Ayrıca β ve λ parametrelerindeki artışın sistem performansını iyileştirdiği, yüksek modülasyon seviyelerinde ise hata oranlarının beklendiği gibi arttığı gözlemlenmiştir. Sonuçlar, AFDM'in Weibull sönümlemeli yüksek mobilite senaryolarında geleceğin kablosuz haberleşme sistemleri için uygun bir aday olduğunu ortaya koymaktadır.

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Cite This Article

Yıldız, A., Develi, İ., Ceniklioğlu, B. (2026). Performance Analysis of AFDM Systems using Different Detection and Modulation Schemes in Weibull Fading Channels. Mühendislik Bilimleri ve Araştırmaları Dergisi, Cilt: 8 Sayı: 2, 246–253. https://doi.org/10.46387/bjesr.2025047

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