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A Combinatorial Analysis and a Closed-Form Analytical Expression for the Signal to Third-Order Distortion Ratio in OFDM Signals through Smooth Memoryless Nonlinearity

Lopes, F. ; Santos, V. ; Cruz, L. A. S. C.

A Combinatorial Analysis and a Closed-Form Analytical Expression for the Signal to Third-Order Distortion Ratio in OFDM Signals through Smooth Memoryless Nonlinearity, Proc International Conf. on Telecommunications and Signal Processing - TSP, Prague, Czech Republic, Vol. I, pp. 689 - 694, July, 2012.

Digital Object Identifier: 10.1109/TSP.2012.6256385

Abstract
In this paper we present a combinatorial analysis
that explicitly exposes the exact number, weight and relative
phase contributions of individual in-band signal subcarriers, for
the in-band nonlinear distortion, experienced by a specific
subcarrier in a nonlinearly distorted multicarrier Orthogonal
Frequency Division Multiplex (OFDM) signal. This analysis is
based on a discrete model of the passband signal and a
polynomial smooth memoryless model of the nonlinearity.