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Photonic Network Communications
Erschienen in: Photonic Network Communications 1/2019

18.02.2019 | Original Paper

Performance enhancement of BPSK-SIM- and DPSK-SIM-based FSO downlink over atmospheric turbulence using aperture averaging and receiver diversity

verfasst von: Prabu Krishnan, Gaurav Kumar Jha, Anubhav Walia

Erschienen in: Photonic Network Communications | Ausgabe 1/2019

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Abstract

In this paper, we evaluate the bit error rate (BER) performance of a free-space optical satellite downlink by considering the atmospheric turbulence effects using binary shift keying subcarrier intensity modulation and differential phase shift keying subcarrier intensity modulation (DPSK-SIM). The performance of the link is enhanced using aperture averaging and receiver diversity. The closed form mathematical expressions of BER for BPSK-SIM and DPSK-SIM schemes are derived and analyzed. It is observed that on varying the turbulence level, the performance of the link degrades when the turbulence level increases. The improved BER of 10−12 and 10−10 at signal-to-noise ratio of 30 dB of the link for both BPSK-SIM and DPSK-SIM is obtained by using aperture averaging (aperture diameter, D = 10 cm) and receiver diversity with optimal combining.
Vorheriger Artikel Illumination, communication and energy efficiency analysis of indoor visible light communication systems under the influence of optical source emission characteristics
Nächster Artikel Mirror-aided non-LOS VLC channel characterizations with a time-efficient simulation model

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Metadaten
Titel
Performance enhancement of BPSK-SIM- and DPSK-SIM-based FSO downlink over atmospheric turbulence using aperture averaging and receiver diversity
verfasst von
Prabu Krishnan
Gaurav Kumar Jha
Anubhav Walia
Publikationsdatum
18.02.2019
Verlag
Springer US
Erschienen in
Photonic Network Communications / Ausgabe 1/2019
Print ISSN: 1387-974X
Elektronische ISSN: 1572-8188
DOI
https://doi.org/10.1007/s11107-019-00836-0

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