Title :
On the Optimization of Signal Constellations for Satellite Channels
Author :
Candreva, Enzo Alberto ; Corazza, Giovanni E. ; Vanelli-Coralli, Alessandro
Author_Institution :
Bologna Univ., Bologna
Abstract :
A gradient method is used to obtain the signal constellation that yields to the minimum error probability over a channel affected by non-linear amplification and additive noise. The results show the dominance of phase shift keying when the amplifier is driven near saturation, and the better performance given by amplitude-phase shift keying if the amplifier is operated in its linear region.
Keywords :
amplitude shift keying; error statistics; gradient methods; optimisation; phase shift keying; satellite communication; wireless channels; additive noise; amplitude-phase shift keying; error probability; gradient method; nonlinear amplification; optimization; satellite channels; signal constellations; Additive white noise; Constellation diagram; Distributed amplifiers; Error probability; Maximum likelihood detection; Nonlinear distortion; Optimization methods; Pulse amplifiers; Satellites; Signal analysis;
Conference_Titel :
Satellite and Space Communications, 2007. IWSSC '07. International Workshop on
Conference_Location :
Salzburg
Print_ISBN :
978-1-4244-0938-9
Electronic_ISBN :
978-1-4244-0939-6
DOI :
10.1109/IWSSC.2007.4409383
