MUSIC-based modal channel estimation for wideband OFDM-OQAM

Author

Garbo, Giovanni ; Mangione, Stefano ; Maniscalco, Vincenzo

Author_Institution

Dipt. di Ing. Elettr., Univ. degli Studi di Palermo, Palermo

fYear

2008

fDate

24-27 Nov. 2008

Firstpage

1

Lastpage

5

Abstract

Orthogonal frequency division multiplexing based on offset quadrature amplitude modulation (OFDM-OQAM) over wideband frequency selective multipath channels suffers from inter-symbol interference (ISI) and inter-carrier interference (ICI) that degrade its performance. Channel estimation and equalization are needed to combat these interferences. In this paper a novel channel estimator for passband OFDM-OQAM signaling over wideband multipath channels, which is based on multiple signal classification (MUSIC) with the Spatial Smoothing technique is presented. Numerical simulation results are presented in the low number of subcarriers, i.e. wideband, scenario.

Keywords

OFDM modulation; channel estimation; intercarrier interference; intersymbol interference; multipath channels; quadrature amplitude modulation; signal classification; channel equalization; frequency selective channels; intercarrier interference; intersymbol interference; modal channel estimation; multiple signal classification; offset quadrature amplitude modulation; orthogonal frequency division multiplexing; spatial smoothing; subcarriers; wideband OFDM-OQAM; wideband multipath channels; Channel estimation; Degradation; Intersymbol interference; Multipath channels; Multiple signal classification; OFDM; Passband; Quadrature amplitude modulation; Smoothing methods; Wideband; Channel estimation; MUSIC; OFDM-OQAM;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Days, 2008. WD '08. 1st IFIP

Conference_Location

Dubai

Print_ISBN

978-1-4244-2828-1

Electronic_ISBN

978-1-4244-2829-8

Type

conf

DOI

10.1109/WD.2008.4812914

Filename

4812914