Peak-to-average power ratio reduction in OTFS using tone reservation: Clipping and windowing

IF 2 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Physical Communication Pub Date : 2025-06-14 DOI:10.1016/j.phycom.2025.102730

Kasukurthi Naveen Kumar , Pydi Deepika , Sivaprasad Valluri , Chakravarthy Gunturu

引用次数: 0

Abstract

Orthogonal Time Frequency and Space (OTFS) is a next-generation two-dimensional modulation technique that operates in the delay-Doppler (DD) domain and provides good resistance against both fading and interference in a high-mobility environment. However, it suffers from a rather high peak-to-average power ratio (PAPR), causing nonlinear distortion and degrading the signal. This paper proposes a new Tone Reservation Clipping and Windowing (TRCW) technique that is supposed to reduce the challenges associated with PAPR and bit-error rate (BER) in OTFS systems. With reserved tones and clipping using optimized windowing, the proposed method provides minimal distortion in the signal and a significant reduction in PAPR and BER. Simulation results demonstrate that TRCW outperforms conventional clipping methods, enhancing overall system efficiency and signal quality, particularly for 5G, 6G, and IoT applications.

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使用音调保留降低OTFS的峰值-平均功率比：剪切和窗口

正交时频空（OTFS）是一种新一代二维调制技术，工作在延迟多普勒（DD）域，在高迁移环境中具有良好的抗衰落和抗干扰能力。然而，它的峰值平均功率比（PAPR）相当高，导致非线性失真并降低信号。针对OTFS系统中PAPR和误码率的问题，提出了一种新的Tone Reservation Clipping and Windowing （TRCW）技术。通过保留音调和使用优化窗口的裁剪，该方法提供了最小的信号失真，并显著降低了PAPR和BER。仿真结果表明，TRCW优于传统的裁剪方法，提高了整体系统效率和信号质量，特别是在5G， 6G和物联网应用中。

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

Physical Communication ENGINEERING, ELECTRICAL & ELECTRONICTELECO-TELECOMMUNICATIONS

CiteScore

5.00

自引率

9.10%

发文量

212

审稿时长

55 days

期刊介绍： PHYCOM: Physical Communication is an international and archival journal providing complete coverage of all topics of interest to those involved in all aspects of physical layer communications. Theoretical research contributions presenting new techniques, concepts or analyses, applied contributions reporting on experiences and experiments, and tutorials are published. Topics of interest include but are not limited to: Physical layer issues of Wireless Local Area Networks, WiMAX, Wireless Mesh Networks, Sensor and Ad Hoc Networks, PCS Systems; Radio access protocols and algorithms for the physical layer; Spread Spectrum Communications; Channel Modeling; Detection and Estimation; Modulation and Coding; Multiplexing and Carrier Techniques; Broadband Wireless Communications; Wireless Personal Communications; Multi-user Detection; Signal Separation and Interference rejection: Multimedia Communications over Wireless; DSP Applications to Wireless Systems; Experimental and Prototype Results; Multiple Access Techniques; Space-time Processing; Synchronization Techniques; Error Control Techniques; Cryptography; Software Radios; Tracking; Resource Allocation and Inference Management; Multi-rate and Multi-carrier Communications; Cross layer Design and Optimization; Propagation and Channel Characterization; OFDM Systems; MIMO Systems; Ultra-Wideband Communications; Cognitive Radio System Architectures; Platforms and Hardware Implementations for the Support of Cognitive, Radio Systems; Cognitive Radio Resource Management and Dynamic Spectrum Sharing.