Pre/Post-Coding Techniques Using Zadoff-Chu Sequence for PAPR Reduction in OTFS

IF 4.4 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-06-09 DOI:10.1109/LCOMM.2025.3577743

Srinivasarao Chintagunta;Nandini Rao Gopal;Akash Singh

引用次数: 0

Abstract

High peak-to-average power ratio (PAPR) is one of the major drawbacks of orthogonal time frequency space (OTFS) based communication systems, leading to deteriorated bit error rate (BER) performance. This letter proposes precoding and postcoding approaches using the Zadoff-Chu sequence to reduce PAPR in OTFS and presents a performance analysis through simulations. The simulation results confirm a significant decrease in PAPR with the proposed approaches compared to other coded OTFS systems, as well as improved BER performance in the presence of a high-power amplifier (HPA) with a specific input backoff.

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利用Zadoff-Chu序列降低OTFS中PAPR的前后编码技术

高峰值平均功率比（PAPR）是正交时频空间（OTFS）通信系统的主要缺点之一，导致误码率（BER）性能恶化。本文提出了使用Zadoff-Chu序列的预编码和后编码方法来降低OTFS中的PAPR，并通过仿真给出了性能分析。仿真结果证实，与其他编码OTFS系统相比，所提出的方法显著降低了PAPR，并且在具有特定输入回退的高功率放大器（HPA）存在时提高了误码率性能。

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 Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.