W-band RoF polarization multiplexing system supports 1048576 QAM with delta-sigma modulation-Reference-Cited by-同舟云学术

W-band RoF polarization multiplexing system supports 1048576 QAM with delta-sigma modulation

Published:2023-05-22 Issue:11 Volume:48 Page:2873
ISSN:0146-9592
Container-title:Optics Letters
language:en
Short-container-title:Opt. Lett.

Author:

Liu Jiaxuan^ORCID,Yu Jianjun¹,Xie Tangyao²^ORCID,Yang Xiongwei^ORCID,Zhang Long^ORCID,Wei Yi,Zheng Tianqi,Zhang Jiao¹^ORCID,Zhou Wen^ORCID,Zhu Min¹³^ORCID,Yu Jianguo²,Zhao Feng⁴^ORCID

Affiliation:

1. Purple Mountain Laboratories

2. Beijing University of Posts and Telecommunications

3. Southeast University

4. Xi’an University of Posts and Telecommunications

Abstract

We propose and experimentally verify a photonics-aided W-band millimeter wave (MMW) radio-over-fiber (RoF) polarization-multiplexed envelope detection system for high-order quadrature amplitude modulation (QAM) signals. To solve the problem of low spectral efficiency of common public radio interface (CPRI) and severe distortion of high-order QAM of envelope detection, quantization noise suppressed delta-sigma modulation (DSM) is introduced into the system. The experimental results show that the system can transmit 131072 QAM signals when meeting the error vector magnitude (EVM) requirements of 5G new radio (NR), and transmit 1048576 QAM signals when meeting the soft decision threshold (SD@20%).

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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