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Title: Analytical Evaluation of Nonlinear Amplify-and-Forward Relay Systems for OFDM Signals
Authors: Guerreiro, João
Dinis, Rui
Carvalho, Paulo Montezuma
Keywords: OFDM
nonlinear distortion effects
Issue Date: Sep-2014
Publisher: IEEE
Abstract: Amplify-and-forward relay techniques combined with OFDM (Orthogonal Frequency Division Multiplexing) modulations are being considered for broadband wireless systems since they allow simple relay systems suitable for severely time-dispersive channels. However, since they rely in OFDM-based signals, these techniques are prone to nonlinear distortion effects. In this paper we consider OFDM-based amplify-andforward relay systems with strong nonlinear distortion effects at both the transmitter and the relay node and we present a simple, but accurate, analytical method for characterizing the distortion levels at the subcarrier level.
OFDM, , amplify-and-forward, nonlinear distortion effects
Peer reviewed: yes
metadata.dc.identifier.doi: 10.1109/VTCFall.2014.6965883
ISSN: 1090-3038
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Appears in Collections:DCT - Artigos/Papers

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