Nonlinear Interference Analysis of Probabilistic Shaping vs. 4D Geometrically Shaped Formats

Published 18 Oct 2020 in cs.IT, eess.SP, and math.IT | (2010.08981v1)

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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