Abstract. At the present time broadband access to the Internet,
using high throughput satellites (HTS), are increasingly popular for air
passengers. Examples of foreign HTS-systems are Inmarsat Global Xpress,
Intelsat EpicNG, Eutelsat KaSat, ViaSat-1, 2. Airborne stations are
manufactured by Aerospace Honeywell JetWave, ViaSat, AeroSat Astronics, Gilat
etc. Therefore, urgent scientific and practical task is the creation of Russian
airborne station of satellite broadband access in the Ka-band, working with the
Russian HTS and not inferior to foreign analogues by its quality indicators,
the main of which from the standpoint of the end user is the information rate
in a forward link. In the article the main features of the satellite broadband
access systems for airborne users are considered, the methods and results of
study of the energy potential and the signal-to-noise ratio, which determines
the attainable information rate in a forward link using DVB-S2X standard, are
presented. The impact of different modulation-coding schemes is analyzed, in
particular, the 256APSK-3/4 modulation coding scheme, which provides the
highest spectral efficiency of 5.9 bits / symbol, and the 32APSK-7/9 modulation
coding scheme, which provides 3.84 bit / symbol spectral efficiency. The
results of calculations allow to choose the operating values of the satellite
equivalent isotropic radiated power and the quality factor of the airborne
station receiver. Similar calculations can be made with other parameters of the
communication system, which will allow you to form the look of a promising
domestic Ka-band airborne station, working with domestic high-capacity satellites
in the DVB-S2X standard, and develop algorithms for controlling the
frequency-energy resource of satellites.
Keywords: satellite communications, broadband access, airmobile
users, radio link energy potential, signal-to-noise ratio.
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For citation:
A. V. Nesterov, A.
A. Lelyukh, G. V.Kulikov, N. S. Gavrikov. Assessment of energy characteristics of
radio lines of perspective systems of satellite broadband access for airmobile
subscribers. Zhurnal
Radioelektroniki - Journal of Radio Electronics. 2019. No. 1. Available at
http://jre.cplire.ru/jre/jan19/11/text.pdf
DOI 10.30898/1684-1719.2019.1.11