Post-distortion for memoryless power amplifiers

Author

Alina, Ziv ; Amrani, Ofer

Author_Institution

Sch. of Electr. Eng., Tel Aviv Univ., Ramat Aviv, Israel

fYear

2014

fDate

3-5 Dec. 2014

Firstpage

1

Lastpage

4

Abstract

A new detection scheme for OFDM signals distorted by a memoryless nonlinear power amplifier is presented. Mitigating the power amplifier nonlinearity in the receiver is referred to as Digital Post-Distortion (DPoD). The new iterative detection scheme, termed Nonlinear Detection (NLD), does not attempt to cancel the nonlinear distortion. Rather, it employs the nonlinear components of the received signal to improve detection assuming that the nonlinear model of the power amplifier is known at the receiver side. The advantages of the proposed technique are demonstrated via simulations.

Keywords

OFDM modulation; iterative methods; nonlinear distortion; power amplifiers; DPoD; NLD; OFDM signals; digital post-distortion; iterative detection scheme; memoryless nonlinear power amplifier; nonlinear components; nonlinear detection; nonlinear distortion; received signal; Mathematical model; Nonlinear distortion; OFDM; Polynomials; Receivers; Signal to noise ratio; digital post distortion; digital predistortion; power amplifier nonlinearity; power amplifier nonlinearity cancellation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical & Electronics Engineers in Israel (IEEEI), 2014 IEEE 28th Convention of

Conference_Location

Eilat

Print_ISBN

978-1-4799-5987-7

Type

conf

DOI

10.1109/EEEI.2014.7005826

Filename

7005826