Digital signal processing for coherent transceivers employing multilevel formats

MS Faruk, SJ Savory - Journal of Lightwave Technology, 2017 - ieeexplore.ieee.org
Digital coherent transceivers have revolutionized optical fiber communications due to their
superior performance offered compared to intensity modulation and direct detection based …

Photonics-assisted millimeter-wave wireless communication

J Yu - IEEE Journal of Quantum Electronics, 2017 - ieeexplore.ieee.org
High-speed millimeter-wave (mm-wave) wireless transmission at 40 Gb/s or higher will be
required in the near future. Due to bottleneck in electrical devices, mm-wave wireless signal …

Photonics-assisted technologies for extreme broadband 5G wireless communications

X Li, J Yu, GK Chang - Journal of Lightwave Technology, 2019 - opg.optica.org
We summarize the enabling technologies for photonics-assisted broadband millimeter-wave
(mm-wave) communication, which is a promising candidate for the enhanced mobile …

System impairment compensation in coherent optical communications by using a bio-inspired detector based on artificial neural network and genetic algorithm

D Wang, M Zhang, Z Li, C Song, M Fu, J Li… - Optics Communications, 2017 - Elsevier
A bio-inspired detector based on the artificial neural network (ANN) and genetic algorithm is
proposed in the context of a coherent optical transmission system. The ANN is designed to …

Modulation-format-independent blind phase search algorithm for coherent optical square M-QAM systems

X Zhou, K Zhong, Y Gao, C Lu, APT Lau, K Long - Optics Express, 2014 - opg.optica.org
Modulation format independence is one of the key challenges in digital signal processing
(DSP) techniques for future elastic optical transmissions. We proposed a modulation-format …

Linewidth-tolerant and multi-format carrier phase estimation schemes for coherent optical m-QAM flexible transmission systems

T Yang, C Shi, X Chen, M Zhang, Y Ji, F Hua… - Optics express, 2018 - opg.optica.org
Multi-format and linewidth-tolerant carrier phase estimation (CPE) is a vital part of digital
signal processing (DSP) units for future elastic optical transmissions to relax the laser …

Carrier phase estimation through the rotation algorithm for 64-QAM optical systems

SM Bilal, G Bosco, J Cheng, APT Lau… - Journal of Lightwave …, 2015 - ieeexplore.ieee.org
A novel low-complexity two-stage digital feedforward carrier phase estimation algorithm
based on the rotation of constellation points to remove phase modulation for a 64-ary …

Low-complexity feed-forward carrier phase estimation for M-ary QAM based on phase search acceleration by quadratic approximation

M Xiang, S Fu, L Deng, M Tang, P Shum, D Liu - Optics Express, 2015 - opg.optica.org
Blind phase search (BPS) algorithm for M-QAM has excellent tolerance to laser linewidth at
the expense of rather high computation complexity (CC). Here, we first theoretically obtain …

Carrier phase recovery algorithms for coherent optical circular mQAM systems

JR Navarro, A Kakkar, X Pang, O Ozolins… - Journal of Lightwave …, 2016 - opg.optica.org
The phase noise tolerance of circular multilevel quadrature amplitude modulation (C-
mQAM) constellations employing different carrier phase recovery (CPR) algorithms is …

[PDF][PDF] 基于K-means的自适应概率整形信号相位恢复算法

杨雄伟, 赵峰, 赵林仙, 孟昭 - Acta Optica Sinica, 2022 - researching.cn
摘要为解决未知概率整形因子信号的自适应相位恢复问题, 提出了一种基于K-means
聚类的自适应相位恢复算法. 通过理论分析与数值仿真, 验证了基于K-means …