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2024 Asia communications and Photonics Conference, ACP 2024 and International Conference on Information Photonics and optical communications, IPOC 2024

作者： Yang, Yansong Xie, Kunfeng Ma, Yuzhe Hu, Liang Chen, Jianping Wu, Guiling State Key Laboratory of Advanced Optical Communication System and Networks Shanghai Jiao Tong University Shanghai China

ISBN: (纸本)9798350379266

In this paper, we proposed a point-to-multipoint fiber-optic time transfer scheme over ring networks. The proposed scheme is experimentally demonstrated over a 400 km ring fiber network with the communication data transmission in an adjacent channel. The results show that the clock difference with the mean value of less than 9.4 ps is obtained, and the time stability in terms of time deviation can be better than 15.17 ps@1s, while the bit error rate of the communication data transmission is better than 1.37×10-14 © 2024 IEEE.

关键词： Bit error rate

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10 λ ×3.26Tb/s CPRI-Equivalent Rate 1024-QAM DA-RoF Fronthaul in Single-Mode Fiber Using Coherent-Compliant DSP

10 λ ×3.26Tb/s CPRI-Equivalent Rate 1024-QAM DA-RoF Fronth...

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2023 Asia communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023

作者： Zhu, Yixiao Fang, Xiansong Zhang, Chenbo Zhou, Lingjun Zheng, Jiayu Xu, Yicheng Xie, Xiaopeng Zhang, Fan Zhuge, Qunbi Hu, Weisheng Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication System and Networks Shanghai China Peking University State Key Laboratory of Advanced Optical Communication System and Networks Beijing China

We experimentally demonstrate high-capacity coherent DA-RoF fronthaul leveraging pilot symbol- and BPS-based carrier phase recovery. Up to 4.42- This and 32.6- This CPRI-equivalent rates are achieved with single-carri... 详细信息

ISBN: (纸本)9798350312614

关键词： carrier phase recovery coherent detection CPRI fronthaul radio-over-fiber

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1-Pb/s CPRI-Equivalent Rate Coherent DA-RoF Fronthaul with 1024-QAM Scalable in Capacity, Reach, and Linewidth Using Residual Carrier-Based Phase Tracking

1-Pb/s CPRI-Equivalent Rate Coherent DA-RoF Fronthaul with 1...

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2023 Asia communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023

作者： Zhu, Yixiao Fang, Xiansong Zhang, Chenbo Lin, Jingjing Xu, Yicheng Hu, Weiwei Chen, Zhangyuan Zhuge, Qunbi Zhang, Fan Xie, Xiaopeng Hu, Weisheng Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication System and Networks Shanghai China Peking University State Key Laboratory of Advanced Optical Communication System and Networks Beijing China

ISBN: (纸本)9798350312614

We demonstrate 1.0-Pb/s CPRI-equivalent rate fronthaul with 1024-QAM by using digital-analog radio-over-fiber and coherent detection based on modulator bias-induced residual carrier for phase tracking. The reach is extended to 20-km SSMF with 4096-QAM and 80-km with 256-QAM, and laser linewidth can be relaxed to 3MHz. © 2023 IEEE.

关键词： carrier phase recovery coherent detection CPRI fronthaul radio-over-fiber

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High-Capacity Digital-Analog Fronthaul via Self-Homo Dyne Detection

High-Capacity Digital-Analog Fronthaul via Self-Homo Dyne De...

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2023 Asia communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings, ACP/POEM 2023

作者： Zhu, Yixiao Zhang, Chenbo Xu, Yicheng Zhuge, Qunbi Xie, Xiaopeng Hu, Wei Sheng Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication System and Networks Shanghai China Peking University State Key Laboratory of Advanced Optical Communication System and Networks Beijing China

We overview the recent progress of high-capacity mobile fronthaul based on digital-analog radio-over-fiber and self-homodyne coherent detection. The principle, architecture, and perspectives are discussed. © 2023... 详细信息

ISBN: (纸本)9798350312614

关键词： CPRI-equivalent rate mobile fronthaul radio-over-fiber self-homodyne coherent detection

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Rate-Flexible Coherent TFDM PON with Transparent Digital Signal Processing Aided by Residual Carrier

Rate-Flexible Coherent TFDM PON with Transparent Digital Sig...

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2024 Signal Processing in Photonic communications, SPPCom 2024

作者： Zhang, Ziheng Zhu, Yixiao Yang, Guangying Man, Lina Lin, Gengming Zhuge, Qunbi Hu, Weisheng State Key Laboratory of Advanced Optical Communication System and Networks Shanghai Jiao Tong University Shanghai200240 China

We leverage modulator finite extinction ratio-induced residual carrier for transparent digital signal processing in coherent time-frequency-division-multiplexing PON. We experimentally demonstrate flexible data rates from 100-Gb/s to 300-Gb/s after 20-km SSMF transmission with a 112-ns preamble. © Optica Publishing Group 2024, © 2024 The Author(s)

关键词： Signal modulation

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Spectrally Efficient Faster-Than-Nyquist Dual-Band Transmission Enabled by Inter-Subcarrier Crosstalk Cancellation 22

Spectrally Efficient Faster-Than-Nyquist Dual-Band Transmiss...

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22nd International Conference on optical communications and networks, ICOCN 2024

作者： Man, Lina Zhu, Yixiao Zhang, Ziheng Yang, Guangying Zhang, Yikun Zhuge, Qunbi Hu, Weisheng Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication System and Networks Shanghai200240 China

We propose and experimentally demonstrate an inter-subcarrier crosstalk cancellation algorithm for fasterthan-Nyquist transmission. At 20% HD-FEC threshold, the achievable faster-than-Nyquist rate improves from 0.875 ... 详细信息

ISBN: (纸本)9798350367652

关键词： Crosstalk

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Single-Wavelength 1.9-Tb/s Direct Detection Using TFLN DDMZM and optical Hilbert Receiver

Single-Wavelength 1.9-Tb/s Direct Detection Using TFLN DDMZM...

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2024 Asia communications and Photonics Conference, ACP 2024 and International Conference on Information Photonics and optical communications, IPOC 2024

作者： Zhu, Yixiao Fang, Xiansong Zhou, Lingjun Zhu, Junbo Li, Yunchen Zhou, Xian Zhong, Kangping Lau, Alan Pak Tao He, Zhixue Wang, Lei Hu, Weisheng Li, Ke Zhang, Fan Pengcheng Laboratory Shenzhen China State Key Laboratory of Advanced Optical Communication System and Networks Shanghai Jiao Tong University Shanghai China State Key Laboratory of Advanced Optical Communication System and Networks School of Electronics Peking University Beijing China University of Science and Technology Beijing Beijing China Photonics Research Institute Department of Electrical and Electronic Engineering The Hong Kong Polytechnic University Hong Kong State Key Laboratory of Advanced Optical Communication System and Networks School of Electronics Shanghai Jiao Tong University Shanghai China State Key Laboratory of Advanced Optical Communication System and Networks Peking University Beijing China

ISBN: (纸本)9798350379266

We propose an optical Hilbert direct detection receiver with an all-pass transfer function for carrier-assisted complex-valued double-sideband signal reception. We experimentally demonstrate single-wavelength line rates at 1.94 Tb/s at 300-m SSMF and 1.84 Tb/s at 10-km SSMF using a >100-GHz thin-film LiNbO3 dual-drive Mach-Zehnder modulator. © 2024 IEEE.

关键词： optical transfer function

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IF-Free Sub-6GHz and mmW Band Integrated ROF Fronthaul Using Low-Pass Delta-Sigma Modulator and RZ Shaping 49

IF-Free Sub-6GHz and mmW Band Integrated ROF Fronthaul Using...

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49th European Conference on optical communications, ECOC 2023

作者： Zhu, Yixiao Fang, Xiansong Zhang, Chenbo Xu, Yicheng Zhuge, Qunbi Xie, Xiaopeng Zhang, Fan Hu, Weisheng State Key Laboratory of Advanced Optical Communication System and Networks Shanghai Jiao Tong University Shanghai200240 China State Key Laboratory of Advanced Optical Communication System and Networks Peking University Beijing100871 China

ISBN: (纸本)9781839539954

We propose a low-complexity and IF-free radio-over-fiber scheme using low-pass delta-sigma modulator and RZ shaping for both sub-6GHz and millimeter-wave bands. Up to 262144-QAM, 65536-QAM and 4096-QAM formats are experimentally delivered at 28-GHz, 30-GHz, and 48-GHz carrier frequency over a 10-km IM-DD SMF link, respectively. © The Institution of Engineering & Technology 2023.

关键词： Delta sigma modulation

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203.6Tb/s CPRI-Equivalent Rate 1024-QAM DA-RoF Fronthaul with Comb-based WDM and SDM Superchannel

203.6Tb/s CPRI-Equivalent Rate 1024-QAM DA-RoF Fronthaul wit...

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2023 optical Fiber communications Conference and Exhibition, OFC 2023

作者： Zhu, Yixiao Zhang, Chenbo Lin, Jingjing Xu, Yicheng Zhuge, Qunbi Hu, Weiwei Chen, Zhangyuan Hu, Weisheng Xie, Xiaopeng Shanghai Jiao Tong University State Key Laboratory of Advanced Optical Communication System and Networks Shanghai200240 China Peking University State Key Laboratory of Advanced Optical Communication System and Networks Beijing100871 China

We demonstrate 203.6Tb/s CPRI-equivalent-rate 1024-QAM self-homodyne fronthaul using digital-analog radio-over-fiber and comb-based SDM and WDM superchannel from a single laser source. We further present new records f... 详细信息

ISBN: (纸本)9781957171180

关键词： Radio-over-fiber

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Decomposition-based learning in drone-assisted wireless-powered mobile edge computing networks

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Digital communications and networks 2024年第6期10卷 1769-1781页

作者： Xiaoyi Zhou Liang Huang Tong Ye Weiqiang Sun State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong UniversityShanghai 200240China College of Computer Science and Technology Zhejiang University of TechnologyHangzhou 310058China

This paper investigates the multi-Unmanned Aerial Vehicle(UAV)-assisted wireless-powered Mobile Edge Computing(MEC)system,where UAVs provide computation and powering services to mobile *** aim to maximize the number of completed computation tasks by jointly optimizing the offloading decisions of all terminals and the trajectory planning of all *** action space of the system is extremely large and grows exponentially with the number of *** this case,single-agent learning will require an overlarge neural network,resulting in insufficient ***,the offloading decisions and trajectory planning are two subproblems performed by different executants,providing an opportunity for *** thus adopt the idea of decomposition and propose a 2-Tiered Multi-agent Soft Actor-Critic(2T-MSAC)algorithm,decomposing a single neural network into multiple small-scale *** the first tier,a single agent is used for offloading decisions,and an online pretrained model based on imitation learning is specially designed to accelerate the training process of this *** the second tier,UAVs utilize multiple agents to plan their *** agent exerts its influence on the parameter update of other agents through actions and rewards,thereby achieving joint *** results demonstrate that the proposed algorithm can be applied to scenarios with various location distributions of terminals,outperforming existing benchmarks that perform well only in specific *** particular,2T-MSAC increases the number of completed tasks by 45.5%in the scenario with uneven terminal ***,the pretrained model based on imitation learning reduces the convergence time of 2T-MSAC by 58.2%.

关键词： Mobile-edge computing Multi-agent reinforcement learning Offloading decision Trajectory planning Unmanned aerial vehicle Wireless power transfer

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