Open AccessPerformance analysis of a LDPC coded OAM-based UCA FSO system exploring linear equalization with channel estimation over atmospheric turbulence: comment
Author(s) -
Peng Yue,
Xiang Yi,
Ruiqi Zheng,
Dong-Ling Xu
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.28.000816
Subject(s) - atmospheric turbulence , equalization (audio) , channel (broadcasting) , turbulence , low density parity check code , optics , computer science , free space optical communication , point (geometry) , telecommunications , optical communication , physics , decoding methods , mathematics , meteorology , geometry
In a previously published paper [Opt. Express26(17), 22182 (2018)], the performance of a LDPC coded OAM-based UCA FSO system exploring linear equalization with channel estimation over atmospheric turbulence has been analyzed. We find that some concepts and descriptions in [Opt. Express26(17), 22182 (2018)] are inconsistent and paradoxical. In this comment, we point out the referred inconsistency and paradox one by one and present the correct explanations.