Chirped DFT-s-OFDM: A New Single-Carrier Waveform With Enhanced LMMSE Noise Suppression

IF 7.1 2区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Vehicular Technology Pub Date : 2025-02-21 DOI:10.1109/TVT.2025.3544337

Yujie Liu;Yong Liang Guan;David González G.;Halim Yanikomeroglu

引用次数: 0

Abstract

In this paper, a new single-carrier waveform, called chirped discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM), is proposed for the sixth generation of communications. As the initial study on this waveform, its performance is analyzed and evaluated in single-user uplink multiple access communications, using a delay-Doppler channel model with independent and identically distributed path amplitudes and different integer delays. By chirping DFT-s-OFDM in the time domain, it maintains the low peak-to-average-power ratio of DFT-s-OFDM. Thanks to full-band transmission and symbols retransmission enabled by chirping and discrete Fourier transform precoding, it enhances noise suppression of linear minimum mean square error equalization. By using pairwise error probability analysis, the derived bit error rate upper bound is close to the simulated ones and the diversity order analysis confirms that it achieves full frequency diversity.

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啁啾DFT-s-OFDM：一种增强LMMSE噪声抑制的新型单载波波形

本文提出了一种新的单载波波形，称为啁啾离散傅立叶变换扩展正交频分复用（DFT-s-OFDM），用于第六代通信。作为对该波形的初步研究，采用具有独立同分布路径幅值和不同整数时延的延迟-多普勒信道模型，对其在单用户上行多址通信中的性能进行了分析和评价。通过在时域对DFT-s-OFDM进行啁啾，保持了DFT-s-OFDM的低峰均功率比。由于啁啾和离散傅立叶变换预编码实现了全频带传输和符号重传，增强了线性最小均方误差均衡的噪声抑制能力。通过对误码率的两两分析，得到的误码率上界与模拟的误码率上界接近，分集阶数分析证实了该算法实现了全频率分集。

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 Transactions on Vehicular Technology 工程技术-电信学

CiteScore

6.00

自引率

8.80%

发文量

1245

审稿时长

6.3 months

期刊介绍： The scope of the Transactions is threefold (which was approved by the IEEE Periodicals Committee in 1967) and is published on the journal website as follows: Communications: The use of mobile radio on land, sea, and air, including cellular radio, two-way radio, and one-way radio, with applications to dispatch and control vehicles, mobile radiotelephone, radio paging, and status monitoring and reporting. Related areas include spectrum usage, component radio equipment such as cavities and antennas, compute control for radio systems, digital modulation and transmission techniques, mobile radio circuit design, radio propagation for vehicular communications, effects of ignition noise and radio frequency interference, and consideration of the vehicle as part of the radio operating environment. Transportation Systems: The use of electronic technology for the control of ground transportation systems including, but not limited to, traffic aid systems; traffic control systems; automatic vehicle identification, location, and monitoring systems; automated transport systems, with single and multiple vehicle control; and moving walkways or people-movers. Vehicular Electronics: The use of electronic or electrical components and systems for control, propulsion, or auxiliary functions, including but not limited to, electronic controls for engineer, drive train, convenience, safety, and other vehicle systems; sensors, actuators, and microprocessors for onboard use; electronic fuel control systems; vehicle electrical components and systems collision avoidance systems; electromagnetic compatibility in the vehicle environment; and electric vehicles and controls.