Optimum Asymptotic Performance for Nonlinearly Amplified OFDM Signals

Author

Guerreiro, Joao ; Dinis, Rui ; Carvalho, Paulo

Author_Institution

DEE, FCT Univ. Nova de Lisboa, Monte de Caparica, Portugal

fYear

2013

fDate

2-5 June 2013

Firstpage

1

Lastpage

5

Abstract

In this paper, we present a theoretical analysis for obtaining the minimum Euclidean distance between two nonlinearly distorted OFDM signals (Orthogonal Frequency Division Multiplexing). This analysis takes advantage of the Gaussian-like behavior of OFDM signals with a large number of subcarriers and can be employed to provide the asymptotic gain of the optimum receiver. This approach is then employed with several different nonlinear characteristics, showing that in general the optimum performance of nonlinear OFDM is better than linear OFDM.

Keywords

OFDM modulation; amplification; geometry; radio receivers; signal processing; Gaussian-like behavior; broadband wireless communication systems; minimum Euclidean distance; nonlinear characteristics; nonlinearly amplified OFDM signals; nonlinearly distorted OFDM signals; optimum asymptotic performance; optimum receiver asymptotic gain; orthogonal frequency division multiplexing; Approximation methods; Euclidean distance; Gain; Nonlinear distortion; OFDM; Receivers;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2013 IEEE 77th

Conference_Location

Dresden

ISSN

1550-2252

Type

conf

DOI

10.1109/VTCSpring.2013.6692682

Filename

6692682