Novel predistortion algorithm for OFDMA

Files

Novel predistortion algorithm for OFDMA.pdf (325.69 KB)

Date

2009

Authors

Editor(s)

Advisor

Supervisor

Co-Advisor

Co-Supervisor

Instructor

Source Title

Proceedings of the IEEE 69th Vehicular Technology Conference, VTC 2009

Print ISSN

1550-2252

Electronic ISSN

Publisher

IEEE

Volume

Issue

Pages

Language

English

Type

Conference Paper

Journal Title

Journal ISSN

Volume Title

Series

Abstract

The RF amplifier in a wireless communication system is usually non-linear in nature. If such an amplifier is used in OFDMA based systems, it will cause serious degradation. This degradation will be both in terms of the reduction in BER and the generation of out of band noise. In this paper we have worked on the linearization method of the amplifier. This work is on a hybrid methodology, in which estimation of the model is performed in frequency domain and compensation is performed in time domain. The downlink preamble of the IEEE802.16e system is used here for the estimation purpose. The results for the suppression of spectra are shown at the end.

Course

Other identifiers

Book Title

Keywords

802.16em 802.16m , High power amplifier , Non-linearity , OFDMA , WuMAX , Cellular telephone systems , Communication systems , Frequency division multiple access , Global system for mobile communications , Mobile computing , Photodegradation , Power amplifiers , Frequency estimation

Citation

Permalink

http://hdl.handle.net/11693/28738

item.page.isversionof

http://dx.doi.org/10.1109/VETECS.2009.5073716

Collections

Department of Electrical and Electronics Engineering