Digitized Radio-over-Fiber Transmission System Based on ADPCM Compressed Encoding

被引：0

作者：

Deng, Jiongbin ^{[1
]}

Ye, Jia ^{[1
]}

Zhong, Ningyuan ^{[1
]}

Pan, Wei ^{[1
]}

Yan, Lianshan ^{[1
]}

Zou, Xihua ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, Sch Informat Sci & Technol, Key Lab Photon Elect Integrat & Commun Sensing Co, Chengdu, Peoples R China

来源：

2024 INTERNATIONAL TOPICAL MEETING ON MICROWAVE PHOTONICS, MWP 2024 | 2024年

基金：

中国国家自然科学基金;

关键词：

Digitized radio-over-fiber (DRoF); adaptive differential pulse code modulation (ADPCM); spectral efficiency;

D O I：

10.1109/MWP62612.2024.10736275

中图分类号：

学科分类号：

摘要：

Digitized radio-over-fiber (DRoF), due to its high signal fidelity, has emerged as a promising solution, but its low spectral efficiency is a technical bottleneck. In this paper, a novel DRoF transmission scheme based on adaptive differential pulse code modulation (ADPCM) is proposed and a proof-of-concept experiment is conducted to verify the feasibility. Experimental results show that millimeter-wave radio frequency (mmWave RF) signals with a bandwidth of 600MHz and a carrier frequency of 28GHz, under 3, 4, 5, and 6-bit quantization, result in recovered quantized signal-to-noise ratio (QSNR) of 17.36dB, 23.11dB, 27.66dB, and 30.51dB after transmission through an On-Off Keying (OOK) intensity modulation/direct detection (IM/DD) optical link. These values represent improvements of 7.23dB, 6.94dB, 5.48dB, and 2.3dB, respectively, compared to the traditional pulse-code modulation (PCM) scheme.

引用

页数：4

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