TY - JOUR
T1 - Equivalent nonlinearities for studying nonlinear effects on sampled OFDM Signals
AU - Guerreiro, Joao
AU - Dinis, Rui
AU - Montezuma de Carvalho, Paulo Miguel de Araújo Borges
N1 - Sem PDF.
Fundacao para a Ciencia e Tecnologia (UID/EEA/50008/2013; EnAcoMIMOCo EXPL/EEI-TEL/2408/2013; CoPWIN PTDC/EEI-TEL/1417/2012; SFRH/BD/90997/2012)
PY - 2015/4/1
Y1 - 2015/4/1
N2 - In this work we consider nonlinear effects on sampled orthogonal frequency division multiplexing (OFDM) signals and we present a method for obtaining a polynomial function with small degree that can be used to substitute severe nonlinear characteristics (possibly non-differentiable, as clipping functions), since it leads to signals with essentially the same spectral characteristics. This equivalent nonlinearity is then employed for performance evaluation of clipped OFDM signals, leading to accurate results with both conventional and optimum receivers.
AB - In this work we consider nonlinear effects on sampled orthogonal frequency division multiplexing (OFDM) signals and we present a method for obtaining a polynomial function with small degree that can be used to substitute severe nonlinear characteristics (possibly non-differentiable, as clipping functions), since it leads to signals with essentially the same spectral characteristics. This equivalent nonlinearity is then employed for performance evaluation of clipped OFDM signals, leading to accurate results with both conventional and optimum receivers.
KW - Gaussian signals
KW - intermodulation analysis
KW - nonlinear effects
KW - OFDM
UR - http://www.scopus.com/inward/record.url?scp=84927709552&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2015.2403326
DO - 10.1109/LCOMM.2015.2403326
M3 - Article
AN - SCOPUS:84927709552
VL - 19
SP - 529
EP - 532
JO - IEEE Communications Letters
JF - IEEE Communications Letters
SN - 1089-7798
IS - 4
M1 - 7041158
ER -