Multidimensional QPSK symbol modulation scheme based on random sequence extraction for D-band photonics-aided wireless communication.

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2024-11-15 DOI:10.1364/OL.542218

Chengzhen Bian, Bohan Sang, Xiongwei Yang, Chen Wang, Long Zhang, Yi Wei, Qiutong Zhang, Kaihui Wang, Wen Zhou, Jianjun Yu

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引用次数: 0

Abstract

We propose a multidimensional (MD) quadrature phase shift keying (QPSK) symbol modulation and demodulation scheme based on random sequence extraction, which overcomes the limitations of traditional QPSK signals in performing probabilistic shaping. Unlike probabilistic shaping (PS) and geometric shaping (GS), our approach does not require modifications to the existing digital signal processing (DSP) architecture; it only necessitates the addition of sequence modulation and demodulation modules. Additionally, the source entropy (SE) can be flexibly adjusted. An experimental verification was conducted in a 50 m, 150 GHz photonics-aided wireless communication system. The results show that, under the same net data rate, the random sequence extraction QPSK scheme can achieve a maximum optical power gain of 0.7 dB. These findings indicate that the random sequence extraction QPSK (SE-QPSK) scheme can effectively enhance system performance, providing a promising outlook for future wireless communication.

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基于随机序列提取的多维 QPSK 符号调制方案，用于 D 波段光子辅助无线通信。

我们提出了一种基于随机序列提取的多维（MD）正交相移键控（QPSK）符号调制和解调方案，克服了传统 QPSK 信号在进行概率整形时的局限性。与概率整形（PS）和几何整形（GS）不同，我们的方法无需修改现有的数字信号处理（DSP）架构，只需增加序列调制和解调模块即可。此外，源熵 (SE) 可以灵活调整。在一个 50 米、150 GHz 的光子辅助无线通信系统中进行了实验验证。结果表明，在相同的净数据率下，随机序列提取 QPSK 方案可实现 0.7 dB 的最大光功率增益。这些研究结果表明，随机序列提取 QPSK（SE-QPSK）方案能有效提高系统性能，为未来的无线通信提供了广阔的前景。

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

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.