Título:
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Optimum power allocation and bit loading with code rate constraints
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Autor/a:
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Matas Navarro, David; Lamarca Orozco, M. Meritxell
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
Abstract:
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In this paper, a new power allocation and bit
loading policy is defined for those systems working with a preselected binary channel code and specific bit error rate (BER) requirements. It consists on the maximization of the spectral efficiency with a constraint on the average mutual information per coded bit (bit MI), exploiting the relationship of the bit MI with the BER and the code rate.
An irregular modulation approach is employed in order to express the policy as a convex optimization problem, solved without the need of greedy algorithms. Results are compared with those obtained with other algorithms in the literature. |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -Signal theory (Telecommunication) -Bit Loading -Senyal, Teoria del (Telecomunicació) |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Objeto de conferencia |
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