Computationally efficient optimal-power allocation algorithms for multicarrier communication systems

doi:10.1109/26.818869

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Computationally efficient optimal-power allocation algorithms for multicarrier communication systems

2000-01-01

307

PRE

Krongold, BS *

Kannan Ramchandran

Douglas L. Jones

DOI：10.1109/26.818869

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Abstract

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In this paper, we present an optimal, computationally efficient, integer-bit power allocation algorithm for discrete multitone modulation. Using efficient lookup table searches and a Lagrange-multiplier bisection search, our algorithm converges faster to the optimal solution than existing techniques and can replace the use of suboptimal methods because of its low computational complexity. Fast algorithms are developed for the data rate and performance margin maximization problems.

Keywords:

discrete multitone modulation

loading algorithm

multicarrier communication systems

power allocation

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