Joint signal‐labeling optimization under peak power constraint

Kayhan, Farbod; Montorsi, G.

doi:10.1002/sat.1016

Cited by 17 publications

(9 citation statements)

References 28 publications

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“…The design of an optimized constellation has been an active research field. In particular, for nonlinear channels, we mention , where the authors adopt a simulated annealing algorithm to jointly optimize the constellations and the bits to symbols labeling.…”

Section: Introductionmentioning

confidence: 99%

Advanced techniques for spectrally efficient DVB‐S2X systems

Ugolini

Modenini

Colavolpe

et al. 2015

Satell Commun Network

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SUMMARYWe investigate different techniques to improve the spectral efficiency of systems based on the DVB-S2 standard, when the transmitted signal bandwidth cannot be increased because it has already been optimized to the maximum value allowed by transponder filters. We will investigate and compare several techniques involving different sections of the transceiver scheme. The techniques that will be considered include the use of advanced detection algorithms, the adoption of time packing, and the optimization of the constellation and shaping pulses. The low-density parity-check codes recently proposed for the evolution of the DVB-S2 standard will be considered, as well as the adoption of iterative detection and decoding. Information-theoretical analysis will be followed by the study of practical modulation and coding schemes.

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Section: Introductionmentioning

confidence: 99%

Advanced techniques for spectrally efficient DVB‐S2X systems

Ugolini

Modenini

Colavolpe

et al. 2015

Satell Commun Network

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“…4 For the AWGN channel, the received signal can be written as y = x + n, where n is the additive white noise with Gaussian distribution. We denote the AMI of a given constellation χ by I(χ):…”

Section: Notations and Backgroundmentioning

confidence: 99%

High Order APSK Constellation Design For Next Generation Satellite Communication

Kayhan

2016

34th AIAA International Communications Satellite Systems Conference

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Employing high order constellations is inevitable in order to achieve high spectral efficiency in satellite communication systems. In DVB-S2X standard, constellations with up to 256 points have been included. However, optimizing such high order constellations is a difficult task. In this paper, we study circular constellations obtained as the image of the QAM under the radial map. Constellations with 16, 64 and 256 points are shown to have a mutual information very close to the peak power limited capacity for a large range of SNR values. For constellations with 256 points gains of at least 0.5 dB can be obtained with respect to the DVB-S2X standard. To have a more realistic view, we also consider the effect of the phase noise on our proposed constellations.

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“…The design of an optimized constellation has been an active research field. In particular, for nonlinear channels, we mention [11][12][13], where the authors adopt a simulated annealing algorithm to jointly optimize the constellations and the bits to symbols labeling.…”

Section: Introductionmentioning

confidence: 99%

Advanced techniques for spectrally efficient DVB-S2X systems

Ugolini

Modenini

Colavolpe

et al. 2014

2014 7th Advanced Satellite Multimedia Systems Conference and the 13th Signal Processing for Space Communications Workshop (ASM

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We investigate different techniques to improve the spectral efficiency of systems based on the DVB-S2 standard, when the transmitted signal bandwidth cannot be increased because it has already been optimized to the maximum value allowed by transponder filters. We will investigate and compare several techniques involving different sections of the transceiver scheme. The techniques that will be considered include the use of advanced detection algorithms, the adoption of time packing, and the optimization of the constellation and shaping pulses. The low-density parity-check codes recently proposed for the evolution of the DVB-S2 standard will be considered, as well as the adoption of iterative detection and decoding. Information-theoretical analysis will be followed by the study of practical modulation and coding schemes.

show abstract

Joint signal‐labeling optimization under peak power constraint

Cited by 17 publications

References 28 publications

Advanced techniques for spectrally efficient DVB‐S2X systems

Advanced techniques for spectrally efficient DVB‐S2X systems

High Order APSK Constellation Design For Next Generation Satellite Communication

Advanced techniques for spectrally efficient DVB-S2X systems

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