Investigating Frequency Modulated OFDM (FM-OFDM): Receiver Design and Analysis Over Time-Varying Channels

IF 6.3 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Open Journal of the Communications Society Pub Date : 2025-04-10 DOI:10.1109/OJCOMS.2025.3559706

Gianmarco Romano;Giovanni Di Gennaro;Amedeo Buonanno;Stefano Buzzi;Francesco A. N. Palmieri

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引用次数: 0

Abstract

This paper provides a comprehensive analysis of Frequency Modulated Orthogonal Frequency Division Multiplexing (FM-OFDM), a novel modulation technique exhibiting good levels of robustness when employed on wireless communication links in high-mobility environments. A novel transceiver receiver design that eliminates the need for phase unwrapping, thereby reducing computational complexity, is proposed. Analytical performance of the modulation is assessed through mathematical derivation of closed-form expressions for the signal-to-noise ratio (SNR) per subcarrier. Such expressions provide in-depth understanding of both ideal and more realistic communication scenarios. Additionally, the paper also contains analytical derivations that permit to evaluate the power spectral density and bandwidth characteristics of the FM-OFDM modulation. Numerical results show the effectiveness of the FM-OFDM waveform in environments affected by large Doppler shifts, as well as the remarkable performance level of the newly proposed low-complexity detector.

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研究调频OFDM (FM-OFDM)：时变信道接收器设计与分析

本文全面分析了调频正交频分复用（FM-OFDM），这是一种新型的调制技术，在高移动环境下的无线通信链路上表现出良好的鲁棒性。提出了一种新的收发器设计，该设计消除了相位展开的需要，从而降低了计算复杂度。通过对每个子载波信噪比（SNR）的封闭表达式的数学推导来评估调制的分析性能。这些表达提供了对理想和更现实的交流场景的深入理解。此外，本文还包含允许评估FM-OFDM调制的功率谱密度和带宽特性的解析推导。数值结果表明了FM-OFDM波形在大多普勒频移环境下的有效性，以及新提出的低复杂度检测器的显著性能水平。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Open Journal of the Communications Society Multiple-

CiteScore

13.70

自引率

3.80%

发文量

审稿时长

10 weeks

期刊介绍： The IEEE Open Journal of the Communications Society (OJ-COMS) is an open access, all-electronic journal that publishes original high-quality manuscripts on advances in the state of the art of telecommunications systems and networks. The papers in IEEE OJ-COMS are included in Scopus. Submissions reporting new theoretical findings (including novel methods, concepts, and studies) and practical contributions (including experiments and development of prototypes) are welcome. Additionally, survey and tutorial articles are considered. The IEEE OJCOMS received its debut impact factor of 7.9 according to the Journal Citation Reports (JCR) 2023. The IEEE Open Journal of the Communications Society covers science, technology, applications and standards for information organization, collection and transfer using electronic, optical and wireless channels and networks. Some specific areas covered include: Systems and network architecture, control and management Protocols, software, and middleware Quality of service, reliability, and security Modulation, detection, coding, and signaling Switching and routing Mobile and portable communications Terminals and other end-user devices Networks for content distribution and distributed computing Communications-based distributed resources control.