Demonstration of 1.2-km D-Band Wireless Fronthaul Using Digital-Differential-PCM Scheme

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-01-10 DOI:10.1109/LPT.2025.3528329

Mingxu Wang;Jianjun Yu;Xianming Zhao;Xiongwei Yang;Yi Wei;Chengzhen Bian;Yang Han;Peng Tian;Sicong Xu;Wen Zhou;Kaihui Wang;Weiping Li

引用次数: 0

Abstract

We propose a digital-differential-pulse-code-modulation fronthaul (DDP-FH) scheme and conduct experimental validation within a photonics-aided D-band 1.2-km wireless fronthaul system. In the experiment, by adopting different resolutions in differential-pulse-code-modulation (DPCM), the recovered signal-to-noise ratio (SNR) can be flexibly adjusted within a wide range from 19.1 dB to 38.9 dB, supporting the transmission of various formats from 64-quadrature-amplitude-modulation (64-QAM) to 4096-QAM. When the resolution of DPCM increases from 2 to 6 bit, the DDP-FH scheme achieves an average SNR gain of 5 dB for each linearly increased bandwidth (BW). Notably, compared to digital-pulse-code-modulation fronthaul (DP-FH), DDP-FH reduces the required bandwidth by approximately

$1.3\cdot $

BW while maintaining the same SNR.

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基于数字差分- pcm方案的1.2 km d波段无线前传演示

我们提出了一种数字差分脉冲编码调制前传（DDP-FH）方案，并在光子辅助的d波段1.2 km无线前传系统中进行了实验验证。在实验中，通过差分脉冲编码调制（DPCM）中采用不同的分辨率，恢复的信噪比（SNR）可以在19.1 dB ~ 38.9 dB的宽范围内灵活调节，支持64-QAM ~ 4096-QAM等多种格式的传输。当DPCM的分辨率从2位增加到6位时，DDP-FH方案每增加一个线性带宽（BW），平均信噪比增益为5 dB。值得注意的是，与数字脉冲编码调制前传（DP-FH）相比，DP-FH在保持相同信噪比的情况下，所需带宽减少了约1.3美元。

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 Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.