@inproceedings{73ee0570a6b4426d9facbbd0fdbdfce7,
title = "On optically pre-amplified FSO-MISO non-identical links with correlation: Experiment and analysis",
abstract = "In this paper, various link characteristics and bit error rate (BER) performance of a free-space optical (FSO) multiple-input-single-output (MISO) system with repetition coding (RC) is investigated both experimentally and theoretically. The study is performed in the presence of atmospheric turbulence (AT) over a correlated channel with an erbium- doped fiber amplifier employed at the receiver (Rx). It is shown experimentally that the measured AT levels of two parallel links are different and the links experience non-identical fading influence. The analytical BER expression for an optically pre-amplified correlated FSOMISO system with non-identical AT channel is derived. The BER results of the considered system with pre- amplifier is compared with the BER results of an FSO system without pre-amplifier, and it is shown analytically that a 2 X 1 FSO system with pre-amplifier offers better BER performance in terms of coding gain of /spl approx/ 6 dB over the system without pre-amplifier. Moreover, it is also shown that the FSO system with RC gives better performance with identical links as compared to non- identical links. Further, it is also revealed that the diversity order of the considered system is independent of correlation and use of pre- amplifier. All the analytical results are validated by comparing them with Matlab simulations.",
keywords = "Arbitrary correlation, ASE noise, Diversity, Experimental, Free-space optical communications, Gamma-gamma distribution, Optical pre-amplifier, Spatial diversity",
author = "Richa Priyadarshani and Bhatnagar, {Manav R.} and Jan Bohata and Stanislav Zvanovec and Zabih Ghassemlooy",
year = "2019",
month = dec,
doi = "10.1109/GLOBECOM38437.2019.9013242",
language = "English",
series = "2019 IEEE Global Communications Conference, GLOBECOM 2019 - Proceedings",
publisher = "IEEE",
booktitle = "2019 IEEE Global Communications Conference, GLOBECOM 2019 - Proceedings",
address = "United States",
note = "2019 IEEE Global Communications Conference, GLOBECOM 2019 ; Conference date: 09-12-2019 Through 13-12-2019",
}