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Non uniform constellations have been recently included in the new terrestrial broadcasting system ATSC 3.0, providing better performance than the uniform ones. However, for high order constellations, the complexity in the demapper grows as the number of constellation points do, being necessary to reduce the number of degrees of freedom in the constellation design process. The goal of this paper is...
Uniform quadrature amplitude modulation (QAM) has been widely used in terrestrial broadcasting systems because it provides a high data rate although it is less resilient to noise and interference. However, the uniform pattern of the constellation points doesn't provide the highest BICM capacity so a degree of non uniformity is needed so as to improve the BICM capacity of the system. On the other hand,...
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