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First Transmission of a 12D Format Across 3 Coupled Spatial Modes of a 3-Core Coupled-Core Fiber at a Spectral Efficiency of 4 bits/s/Hz [article]

René-Jean Essiambre, Roland Ryf, Sjoerd van der Heide, Juan I. Bonetti, Hanzi Huang, Murali Kodialam, Francisco Javier García-Gómez, Ellsworth C. Burrows, Juan C. Alvarado-Zacarias, Rodrigo Amezcua-Correa, Xi Chen, Nicolas K. Fontaine, Haoshuo Chen
2019 arXiv   pre-print
We demonstrate the first transmission of a new twelve-dimensional modulation format over a three-core coupled-core multicore fiber.  ...  The format occupies a single time slot spread across all three linearly-coupled spatial modes and shows improved MI and GMI after transmission compared to PDM-QPSK.  ...  Conclusion We presented the first long-distance transmission of a 12D modulation format implemented across coupled spatial modes in a 3-core coupled-core multicore fiber.  ... 
arXiv:1909.11220v1 fatcat:pnu3zlub2vdq5kpmf33yzo2zgy

Orbital angular momentum and beyond in free-space optical communications

Jian Wang, Jun Liu, Shuhui Li, Yifan Zhao, Jing Du, Long Zhu
2022 Nanophotonics  
Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension of light waves into a helical phase structure, has given rise to many applications in optical manipulation, microscopy  ...  The prospects and challenges of optical communications using OAM and beyond are also discussed at the end.  ...  efficiency of 435 bit/s/Hz.  ... 
doi:10.1515/nanoph-2021-0527 fatcat:3fkawlzcwrgubmryy5glb5h2am

Collaborative communications, caching, and computing for cloud-assisted 5G wireless networks

Tuyen X. Tran
2018
alone is not sufficient and has to be accompanied by innovations at higher layers.  ...  The two emerging paradigms for cloud-assisted wireless networks are Cloud Radio Access Network (C-RAN), which aims at the centralization of base station (BS) functionalities via network virtualization  ...  Thus, under the clustering decision S and the beamforming design W, the normalized downlink data rate (bits/s/Hz) of user u can be calculated as R u (S, W) = log 2 (1 + γ u ) . (3) Computing resource constraint  ... 
doi:10.7282/t33f4t39 fatcat:dlqngg7hjzg3njvcxwvtinn2uu