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Self-Homodyne Digital-Analog Radio-over-Fiber Fronthaul: Principle, Architecture, and Prospects
IEEE Communications MagazineThe next-generation radio access network is envisioned to support ultra-wide bandwidth, be highly reliable, and with low-latency wireless signal delivery in mobile fronthaul.
Yixiao Zhu +9 more
semanticscholar +1 more source
IEEE Transactions on Wireless Communications, 2023
In this paper, we propose an energy-efficient federated learning (FL) framework for the energy-constrained devices over cloud radio access network (Cloud-RAN), where each device adopts quantized neural networks (QNNs) to train a local FL model and ...
Jiali Wang +3 more
semanticscholar +1 more source
In this paper, we propose an energy-efficient federated learning (FL) framework for the energy-constrained devices over cloud radio access network (Cloud-RAN), where each device adopts quantized neural networks (QNNs) to train a local FL model and ...
Jiali Wang +3 more
semanticscholar +1 more source
100 Gbps quantum-secured and O-RAN-enabled programmable optical transport network for 5G fronthaul
Journal of Optical Communications and Networking, 2023We have successfully demonstrated the first 5G open radio access network (O-RAN)-enabled and quantum-secured optical network solution and tested its performance in a 5G fronthaul use case.
E. Arabul +7 more
semanticscholar +1 more source
Optics Letters
We propose a non-uniform-quantization digital-analog radio-over-fiber (NUQ-DA-RoF) scheme based on an advanced K-means NUQ algorithm and demonstrate it experimentally in a 2-m 300-GHz photonics-aided wireless fronthaul system.
Mingxu Wang +5 more
semanticscholar +1 more source
We propose a non-uniform-quantization digital-analog radio-over-fiber (NUQ-DA-RoF) scheme based on an advanced K-means NUQ algorithm and demonstrate it experimentally in a 2-m 300-GHz photonics-aided wireless fronthaul system.
Mingxu Wang +5 more
semanticscholar +1 more source
Robust Cascaded Team MMSE Precoding for Cell-Free Distributed Downlink Under Hierarchical Fronthaul
IEEE Transactions on Wireless CommunicationsDistributed precoding is a meaningful topic in the cell-free massive multiple input multiple output system. This system faces challenges in performance degradation due to the absence of knowledge from other antennas and several realistic constraints ...
Ziyao Hong +5 more
semanticscholar +1 more source
SNR Improved Truncated-Digital-DSM Radio-Over-Fiber Scheme for Future Mobile Fronthaul
Journal of Lightwave TechnologyWe propose a truncated digital delta-sigma modulated radio-over-fiber (TDDSM-RoF) scheme and verify it experimentally in a 10-km standard single-mode fiber (SSMF) coherent system.
Mingxu Wang +6 more
semanticscholar +1 more source
PWM fronthauling in reflective PON
2016 European Conference on Networks and Communications (EuCNC), 2016Pulse width modulation (PWM) has recently been proposed for analog optical fronthauling in centralized radio access networks (CRANs) to avoid the bandwidth expansion of digital fronthauling (e.g., common public radio interface protocol, CPRI). At the transmitter, the radio-signal is mapped onto the duration of an on/off keyed optical signal, while at ...
COMBI, LORENZO +4 more
openaire +2 more sources
Optimal Joint Fronthaul Compression and Beamforming Design for Networked ISAC Systems
IEEE Transactions on Signal ProcessingThis study investigates a networked integrated sensing and communication (ISAC) system, where multiple base stations (BSs), connected to a central processor (CP) via capacity-limited fronthaul links, cooperatively serve communication users while ...
Kexin Zhang +4 more
semanticscholar +1 more source
Journal of Lightwave Technology, 2023
In response to emerging 5G fronthaul technology needs and low-cost scale deployment requirements, a novel CWDM and Circulator Integrated Semi-active system for 5G fronthaul is proposed.
Dezhi Zhang +4 more
semanticscholar +1 more source
In response to emerging 5G fronthaul technology needs and low-cost scale deployment requirements, a novel CWDM and Circulator Integrated Semi-active system for 5G fronthaul is proposed.
Dezhi Zhang +4 more
semanticscholar +1 more source
Analog Predistorter for RoF Fronthaul Link Excited by a 400MHz Bandwidth 5G NR Signal
IEEE Transactions on Circuits and Systems - II - Express BriefsThe radio-over-fiber (RoF) system has been widely used for the fronthaul transmission of remote radio units (RRUs) in recent decades. With the development of the mobile communication, the instantaneous bandwidth is increasing.
Gaoming Xu +5 more
semanticscholar +1 more source