A Discrete Bit Loading Algorithm for FBMC/OQAM

Author

Caus, Màrius ; Pérez-Neira, Ana I. ; García-Armada, Ana

Author_Institution

Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya (UPC), Barcelona, Spain

Volume

19

Issue

6

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

324

Lastpage

327

Abstract

In this letter the discrete rate maximization problem is investigated for FBMC/OQAM. The analysis reveals that if there is crosstalk certain bit allocations violate the power constraints. Aiming at ensuring the feasibility along with alleviating the complexity we have devised a novel iterative algorithm, which always converges. Simulation-based results show that the proposed algorithm performs close to the upper bound for high-coherence bandwidth channels. Under highly frequency selective channels the existing algorithms are not able to guarantee the target SER whereas our approach guarantees the QoS.

Keywords

crosstalk; quadrature amplitude modulation; FBMC/OQAM; QoS; bit allocation; crosstalk; discrete bit loading algorithm; discrete rate maximization problem; frequency selective channels; high-coherence bandwidth channels; iterative algorithm; power constraints; upper bound; Complexity theory; Frequency modulation; Interference; OFDM; Signal processing algorithms; Signal to noise ratio; Vectors; Discrete rate maximization; FBMC/OQAM;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2012.2192429

Filename

6176203