Recent works have shown that modern machine learning techniques can provide an
alternative approach to the long-standing joint source-channel coding (JSCC) problem. Very …

The choice of modulation schemes is a fundamental building block of wireless
communication systems. As a key component of physical layer design, they critically impact …

In optical fiber transmission systems using inline amplifiers, the interaction of a signal and
amplifier noise through the Kerr effect leads to nonlinear phase noise that can impair the …

In this paper, we optimize the constellation sets to be used in communication systems
affected by phase noise. The main objective is to find the constellation which maximizes the …

This paper presents a generic methodology to optimize constellations based on their
geometrical shaping for bit-interleaved coded modulation (BICM) systems. While the method …

In this paper we optimize constellation sets to be used for channels affected by phase noise.
The main objective is to maximize the achievable mutual information of the constellation …

In this paper, we introduce a variation of simulated annealing algorithm for optimizing two‐
dimensional constellations with finite number of signals by maximizing the symmetric and …

Employing high order constellations is inevitable in order to achieve higher spectral
efficiency in satellite communication systems. In DVB-S2X standard, constellations with up to …

In this paper we introduce a variation of simulated annealing algorithm for optimizing two-
dimensional constellations with finite number of signals when the objective function is the …

Nowadays, the users' demand of high quality multimedia contents and the available
spectrum resources drive the Digital Terrestrial Television (DTT) market. Next generation …