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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 (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
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