Evidence map›Paper›PMID 42733082›Full record

ArticleNature communications2026

Sub-picosecond synchronized multi-faceted fronthaul with one-sample-per-symbol coherent detection.

Chenbo Zhang, Yixiao Zhu, Jingjing Lin, Yi Zou, Xiansong Fang, Yimin Hu, Weiwei Hu, Weisheng Hu, Zhangyuan Chen, Xiaopeng Xie

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Chenbo Zhang *State Key Laboratory of Photonics and Communications, School of Electronics, Peking University, Beijing, China.
Yixiao Zhu *State Key Laboratory of Photonics and Communications, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China.ORCID http://orcid.org/0000-0002-9898-3804
Jingjing LinState Key Laboratory of Photonics and Communications, School of Electronics, Peking University, Beijing, China.
Yi ZouState Key Laboratory of Photonics and Communications, School of Electronics, Peking University, Beijing, China.
Xiansong FangState Key Laboratory of Photonics and Communications, School of Electronics, Peking University, Beijing, China.
Yimin HuState Key Laboratory of Photonics and Communications, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China.
Weiwei HuState Key Laboratory of Photonics and Communications, School of Electronics, Peking University, Beijing, China.
Weisheng HuState Key Laboratory of Photonics and Communications, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, China.
Zhangyuan ChenState Key Laboratory of Photonics and Communications, School of Electronics, Peking University, Beijing, China.ORCID http://orcid.org/0000-0003-4216-249X
Xiaopeng XieState Key Laboratory of Photonics and Communications, School of Electronics, Peking University, Beijing, China. xiaopeng.xie@pku.edu.cn.ORCID http://orcid.org/0000-0001-9023-0624

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

High-precision synchronization, empowering sub-centimeter positioning and simplified digital signal processing (DSP), is essential for next-generation multifunctional, high-capacity and energy-efficient fronthaul networks. However, simultaneously achieving sub-picosecond time synchronization and high-throughput fronthaul transmission within a unified network remains a technical challenge. Here, we propose an electro-optic comb-based bidirectional fronthaul architecture that seamlessly integrates advanced telecommunication and time-frequency synchronization. Pilot comb lines, acting as high-fidelity carriers for clock delivery, are bidirectionally transmitted, enabling real-time phase drift compensation and achieving 0.25 ps root-mean-square time synchronization stability. Meanwhile, the forward pilots also facilitate remote-site comb regeneration, providing local oscillators for self-homodyne detection. Moreover, by harnessing this dual capability, we achieve network-synchronous one-sample-per-symbol coherent detection at the Nyquist limit across all parallel channels, eliminating carrier-phase and sampling-clock-related DSP while substantially reducing the complexity of analog-to-digital conversion and the remaining DSP. Our proposed architecture offers a scalable prototype for 6G multifunctional coherent-lite fronthaul networks.

Identifiers

PMID42733082
PMCPMC13572374

What OpenQuestion holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.