Widely-linear normalised orthogonal gradient adaptive-based algorithm for OFDM systems

Author

Sitjongsataporn, Suchada

Author_Institution

Centre of Electronic Systems Design and Signal Processing (CESdSP), Department of Electronic Engineering, Mahanakorn University of Technology, 140 Cheumsamphan Road, Nongchok, Bangkok 10530, Thailand

fYear

2012

fDate

16-18 May 2012

Firstpage

1

Lastpage

4

Abstract

In this paper, the modified widely-linear (WL) frequency-domain equalisation based on the normalised version of orthogonal gradient adaptive (NOGA) algorithm is proposed for orthogonal frequency division multiplexing (OFDM) systems. We introduce the extension of NOGA algorithm to widely linear complex-valued approach investigated with mixed-subcarrier cost function. The proposed algorithm can be easily switched between conventional and widely-linear approach. A convergence analysis of proposed algorithm is presented. Simulation results show that the proposed algorithm can achieve the same performance as of standard WL approach compared with the existing algorithm.

Keywords

Algorithm design and analysis; Convergence; Cost function; Estimation; OFDM; Signal processing algorithms; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON), 2012 9th International Conference on

Conference_Location

Phetchaburi, Thailand

Print_ISBN

978-1-4673-2026-9

Type

conf

DOI

10.1109/ECTICon.2012.6254161

Filename

6254161