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Title: Improving the performance of Nonlinear OFDM Schemes with ML-based Receivers
Authors: Guerreiro, João
Dinis, Rui
Carvalho, Paulo Montezuma
Oliveira, Rodolfo
Keywords: OFDM signals
nonlinear distortion effects
optimum receiver
Euclidean distance
Issue Date: Aug-2013
Publisher: IEEE
Abstract: In this paper we consider the use of optimum-based reception for OFDM (Orthogonal Frequency Division Multiplexing) signals with M-QAM constellations that are subjected to a clipping operation in their transmission chain. It is shown that the nonlinear distortion that comes from that operation does not lead to performance losses and can even lead to performance improvements relative to the linear transmission. It is also presented a sub-optimum receiver that reduces drastically the complexity relative to the optimum receiver and achieves remarkable gains when compared to the typical OFDM receivers.
Peer Reviewed: yes
ISBN: 978-3-8007-3529-7
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Appears in Collections:DCT - Artigos/Papers

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