Spiral Constellations for Nonlinear Channels
Journal article, 2024
In this letter, we propose a novel constellation design, specifically tailored to contrast the effect of nonlinear channels. The proposed constellations are based on a spiral expression, which, unlike other unstructured designs, makes them easy to build and optimize. Our design approach allows to optimize the distance between symbols in the angular and radial directions, resulting in a constellation that is robust to the nonlinearities, which affect more severely symbols with higher magnitude. Simulation results show that the proposed constellations outperform the solutions usually adopted for nonlinear channels, especially when the constellation size increases.
Phase noise
Receivers
Nonlinear channels
Complexity theory
Spirals
Symbols
Optimization
spiral constellations
constellation design
Pragmatics
Author
Amina Piemontese
University of Parma
Alessandro Ugolini
University of Parma
Marco Morini
University of Parma
Giulio Colavolpe
University of Parma
Thomas Eriksson
Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks
IEEE Communications Letters
1089-7798 (ISSN) 15582558 (eISSN)
Vol. 28 9 2016-2020Subject Categories
Telecommunications
Communication Systems
Signal Processing
DOI
10.1109/LCOMM.2024.3438830