Closed-Form BER Expression for (QAM or OQAM)-Based OFDM System With HPA Nonlinearity Over Rayleigh Fading Channel

Author

Zayani, Rafik ; Shaiek, Hmaied ; Roviras, Daniel ; Medjahdi, Yahia

Author_Institution

Innov´COM Lab., Univ. of Carthage, Ariana, Tunisia

Volume

4

Issue

1

fYear

2015

fDate

Feb. 2015

Firstpage

38

Lastpage

41

Abstract

Nonlinear distortions caused by high-power amplifiers are considered the key impairment in multicarrier techniques-based communication systems. However, there are few past investigations addressing their effect on the performance of filter bank multicarrier-based systems. In this letter, we derive a closed-form expression for the BER of Gray-coded M-ary [quadrature amplitude modulation (QAM) or offset QAM]-based OFDM running under a frequency-flat-fading Rayleigh channel, which is valid for any memoryless nonlinearity model and can be evaluated without a numerical integration method.

Keywords

Gray codes; OFDM modulation; Rayleigh channels; channel bank filters; channel coding; error statistics; frequency modulation; modulation coding; nonlinear distortion; nonlinear filters; quadrature amplitude modulation; Gray-coded M-ary based OFDM; HPA nonlinearity; OFDM system; OQAM; QAM; closed-form BER expression; filter bank multicarrier-based system; frequency flat fading Rayleigh channel; high-power amplifier; memoryless nonlinearity model; multicarrier technique-based communication system; nonlinear distortion; offset quadrature amplitude modulation; Bit error rate; Equations; Fading; Mathematical model; OFDM; Quadrature amplitude modulation; Signal to noise ratio; BER; FBMC; HPA; NLD; OFDM; Offset QAM;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/LWC.2014.2365023

Filename

6936335