A hardware-software platform for digital pre-distortion development and validation

Author

Balula de Almeida, Nuno ; Matos, Joao Nuno ; Oliveira, A. ; Alves Lopes, Jorge

Author_Institution

Inst. de Telecomun., Univ. de Aveiro, Aveiro, Portugal

fYear

2013

fDate

1-4 July 2013

Firstpage

1892

Lastpage

1896

Abstract

In order to reduce the adjacent channel interference to comply with the transmitted spectrum emission masks of the IEEE 802.11p standard, the power amplifier, integrated into our prototype for vehicular communications, needs to be linearised. Here a hardware-software platform to implement and to validate digital pre-distortion for power amplifier linearisation is outlined. All the steps to develop and to validate both the power amplifier and the digital pre-distorter models are stated in a flowchart. The digital pre-distorter that we have implemented reduces 20 dB the interference in adjacent channels which results in an adjacent channel power ratio of 60 dB.

Keywords

adjacent channel interference; distortion; interference suppression; power amplifiers; vehicular ad hoc networks; wireless LAN; IEEE 802.11p standard; adjacent channel interference reduction; digital predistorter; digital predistortion development; hardware-software platform; power amplifier linearisation; spectrum emission mask transmission; vehicular communications; Bandwidth; Nonlinear distortion; Peak to average power ratio; Polynomials; Power amplifiers; Prototypes; Standards; IEEE 8022.11p; digital pre-distortion; linearization; power amplifier characterization; spectrum emission mask; vehicular communications;

fLanguage

English

Publisher

ieee

Conference_Titel

EUROCON, 2013 IEEE

Conference_Location

Zagreb

Print_ISBN

978-1-4673-2230-0

Type

conf

DOI

10.1109/EUROCON.2013.6625236

Filename

6625236