Optimal discrete dynamic loading algorithms for multicarrier systems

In this paper optimal discrete dynamic loading algorithms for multicarrier systems employing DMT (discrete multitone) are proposed. The solutions are derived under the additional constraints on either the maximum allowed energy for each subchannel or the maximum size of the QAM constellations that a...

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Bibliographic Details
Published in2003 IEEE 4th Workshop on Signal Processing Advances in Wireless Communications pp. 373 - 377
Main Authors Fasano, A., Di Blasio, G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Algorithm design and analysis
ANSI standards
Greedy algorithms
Heuristic algorithms
OFDM modulation
Quadrature amplitude modulation
Quality of service
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ISBN9780780378582
078037858X
DOI10.1109/SPAWC.2003.1318985

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Summary:In this paper optimal discrete dynamic loading algorithms for multicarrier systems employing DMT (discrete multitone) are proposed. The solutions are derived under the additional constraints on either the maximum allowed energy for each subchannel or the maximum size of the QAM constellations that are used. Both dynamic margin maximization and dynamic rate maximization are considered. The optimal solutions to these problems are provided under very general conditions and include as special cases previously known results. The solutions are developed in the framework of matroid theory, resorting to some results concerning the optimality of a greedy algorithm in combinatorial optimization.
ISBN:9780780378582
078037858X
DOI:10.1109/SPAWC.2003.1318985