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Noise immunity analysis for M-APSK signaling over satellite link with nonlinear distortions

Nosov V.   (Siberian State University of Telecommunications and Information Sciences (Novosibirsk, Russia))

Degtyarev S.   (Siberian State University of Telecommunications and Information Sciences (Novosibirsk, Russia))

This paper represents the calculation technique of noise immunity and optimal satellite amplifier’s operation mode in case of M-APSK signals transmission. The developed algorithm allows automated computation of optimal decision areas for every signal point of M-APSK constellations of different orders. The calculation of nonlinear phase and amplitude distortions implemented according the Saleh nonlinearity model, one of the approximation models for amplitude and amplitude-phase amplifier’s characteristics. As a result, the developed technique allows to estimate the optimal OBO (output back-off) value, which provides the best trade-off between compensation of the nonlinearity and signal-to-noise ratio decrease.

Keywords:satellite communication systems, M-APSK, nonlinear distortions, noise immunity.

 

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Citation link:
Nosov V. , Degtyarev S. Noise immunity analysis for M-APSK signaling over satellite link with nonlinear distortions // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2017. -№06. -С. 14-22
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