SNR improved digital-delta-sigma-modulation radio-over-fiber scheme for D-band 4.6-km photonics-aided wireless fronthaul-Reference-Cited by-同舟云学术

SNR improved digital-delta-sigma-modulation radio-over-fiber scheme for D-band 4.6-km photonics-aided wireless fronthaul

Published:2023-07-21 Issue:15 Volume:48 Page:3997
ISSN:0146-9592
Container-title:Optics Letters
language:en
Short-container-title:Opt. Lett.

Author:

Wang Mingxu^ORCID,Yu Jianjun,Zhao Xianming¹,Li Weiping^ORCID,Wei Yi^ORCID,Yang Xiongwei^ORCID,Shi Junting,Bian Chengzhen,Xie Tangyao²^ORCID,Zhao Feng³^ORCID,Yu Jianguo²,Zhou Wen^ORCID,Wang Kaihui^ORCID

Affiliation:

1. Harbin Institute of Technology

2. Beijing University of Posts and Telecommunications

3. Xi’an University of Posts and Telecommunications

Abstract

We propose a digital-delta-sigma-modulation radio-over-fiber (DDSM-RoF) scheme for wireless fronthaul and validate it experimentally in a D-band photonics-aided RoF transmission system. The 10-Gbaud DDSM-RoF signal with a common public radio interface equivalent data rate (CPRI-EDR) of 55.8 Gb/s is successfully transmitted in a 130-GHz 4.6-km wireless channel. The spectral efficiency (SE) is 5.58 bit/s/Hz and the capacity-distance product reaches 257 Gb/s·km. Up to 34.4-dB recovered signal-to-noise ratio (SNR) is observed to support the 1024-quadrature-amplitude-modulation (1024-QAM) transmission. Compared with the digital-analog-RoF (DA-RoF) scheme, the proposed DDSM-RoF achieves an SNR improvement of 5.9 dB.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

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