Open AccessAn efficient rate-adaptive transmission technique using shortened pulses for atmospheric optical communications
Author(s) -
Antonio Jurado-Navas,
José María Garrido-Balsells,
Miguel Castillo-Vázquez,
Antonio Puerta-Notario
Publication year - 2010
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.18.017346
Subject(s) - optics , pulse position modulation , free space optical communication , optical communication , computer science , transmission (telecommunications) , keying , amplitude shift keying , robustness (evolution) , bit error rate , telecommunications , electronic engineering , physics , phase shift keying , pulse amplitude modulation , pulse (music) , decoding methods , biochemistry , chemistry , detector , gene , engineering
In free space optical (FSO) communication, atmospheric turbulence causes fluctuation in both intensity and phase of the received light signal what may seriously impair the link performance. Additionally, turbulent inhomogeneities may produce optical pulse spreading. In this paper, a simple rate adaptive transmission technique based on the use of variable silence periods and on-off keying (OOK) formats with memory is presented. This technique was previously proposed in indoor unguided optical links by the authors with very good performance. Such transmission scheme is now extensively analyzed in terms of burst error rate, and shown in this paper as an excellent alternative compared with the classical scheme based on repetition coding and pulse-position modulation (PPM), presenting a greater robustness to adverse conditions of turbulence.