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A Discrete Bit Loading Algorithm for FBMC/OQAM

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 algor...

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Bibliographic Details
Published in:IEEE signal processing letters 2012-06, Vol.19 (6), p.324-327
Main Authors: Caus, M., Perez-Neira, A. I., Garcia-Armada, A.
Format: Article
Language:English
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Summary: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.
ISSN:1070-9908
1558-2361
DOI:10.1109/LSP.2012.2192429