Text

Analytical Channel Model and Link Design Optimization for Ground-to-HAP Free-Space Optical Communications

Integrating high altitude platforms (HAPs) and free space optical (FSO) communications is a promising solution to establish high data rate aerial links for the next generation wireless networks. However, practical limitations such as pointing errors and angle-of-arrival (AOA) fluctuations of the optical beam due to the orientation deviations of hovering HAPs make it challenging to implement HAP-based FSO links. For a ground-to-HAP FSO link, tractable, closed-form statistical channel models are derived in this article to simplify optimal design of such systems. The proposed models include the combined effects of atmospheric turbulence regimes (i.e., log-normal and gamma-gamma), pointing error induced geometrical loss, pointing jitter variance caused by beam wander, detector aperture size, beam-width, and AOA fluctuations of the received optical beam. The analytical expressions are corroborated by performing Monte--Carlo simulations. Furthermore, closed-form expressions for the outage probability of the considered link under different turbulence regimes are derived. Detailed analysis is carried out to optimize the transmitted laser beam and the field-of-view of the receiver for minimizing outage probability under different channel conditions. The obtained analytical results can be applied to finding the optimal parameter values and designing ground-to-HAP FSO links without resorting to time-consuming simulations.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.38 No.18, September 15, 2020

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 5036 - 5047

Bahasa

English

ISBN/ISSN

-

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

ATMOSPHERIC TURBULENCE
CHANNEL MODELING
HIGH ALTITUDE PLATFORMS
FREE-SPACE OPTICS
ANGLE-OF-ARRIVAL FLUCTUATIONS

Info Detail Spesifik

-

Pernyataan Tanggungjawab

Hossein Safi, Akbar Dargahi, Julian Cheng, Majid Safari

Versi lain/terkait

Lampiran Berkas

Komentar