Nonlinear Interference Analysis of Probabilistic Shaping vs. 4D Geometrically Shaped Formats
Bin Chen, Chigo Okonkwo, Alex Alvarado
TL;DR
This paper compares the nonlinear interference performance of probabilistic shaping and 4D geometrically shaped modulation formats, revealing significant reach improvements through simulations.
Contribution
It provides a detailed analysis of nonlinear interference effects on 4D orthant-symmetric modulation and probabilistic shaping, highlighting their trade-offs and benefits.
Findings
9.3% reach increase with 4D orthant-symmetric format
Probabilistic shaping improves nonlinear tolerance
Simulation results demonstrate performance trade-offs
Abstract
Performance trade-offs between linear shaping and nonlinear tolerance of the recently introduced 4D orthant-symmetric 128-ary modulation format are investigated. Numerical simulations show 9.3% reach increase with respect to the 7b4D-2A8PSK format and probabilistically-shaped 16QAM with short blocklength.
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Taxonomy
TopicsOptical Network Technologies · Advanced Photonic Communication Systems · Advanced Optical Network Technologies