Constellation and Mapping Optimization of APSK Modulations used in DVB-S2 | Zendy

L. T. Jordanova | Zendy; Ласко Ласков | Zendy; D. Dobrev | Zendy

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Constellation and Mapping Optimization of APSK Modulations used in DVB-S2

Author(s) -

L. T. Jordanova,

Ласко Ласков,

D. Dobrev

Publication year - 2014

Publication title -

engineering technology and applied science research

Language(s) - English

Resource type - Journals

eISSN - 2241-4487

pISSN - 1792-8036

DOI - 10.48084/etasr.496

Subject(s) - constellation , amplitude and phase shift keying , digital video broadcasting , satellite constellation , computer science , algorithm , satellite , mathematics , telecommunications , electronic engineering , quadrature amplitude modulation , bit error rate , engineering , physics , decoding methods , astronomy , aerospace engineering

This article represents the algorithms of APSK constellation and mapping optimization. The dependencies of the symbol error probability Ps on the parameters of the 16APSK and 32APSK constellations are examined and several options that satisfy the requirements to the minimum value of Ps are selected. Mapping optimization is carried out for the selected APSK constellations. BER characteristics of the satellite DVB-S2 channels are represented when using optimized and standard 16APSK and 32APSK constellations and a comparative analysis of the results achieved is made.

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