Interference cancellation in coded OFDM/OQAM

Author

Aoude, Mohamad ; Vallet, Robert ; Nedic, Slobodan

Author_Institution

Lebanese Univ., Beirut, Lebanon

fYear

2012

Firstpage

181

Lastpage

185

Abstract

This paper addresses the concatenation of a convolutional code and COFDM/OQAM modulation transmitted over a time-dispersive radio channel. The proposed receiver is composed of a suitable OFDM/OQAM filter-bank demodulator, followed by an intersymbol and inter(-subchannel) interferences canceller and a SISO (Soft Input - Soft Output) decoder put in Turbo-like mode. The iterative algorithms are based on message passing on bipartite graphs. As an example, performance comparison with the linear subchannel equalization is presented.

Keywords

OFDM modulation; channel bank filters; codecs; decoding; demodulators; interference suppression; intersymbol interference; iterative methods; quadrature amplitude modulation; COFDM/OQAM modulation; OFDM/OQAM filter-bank demodulator; SISO; bipartite graphs; coded OFDM/OQAM; convolutional code concatenation; interference cancellation; interferences canceller; intersymbol interferences; iterative algorithms; linear subchannel equalization; soft input-soft output decoder; subchannel interferences; turbo-like mode; Complexity theory; Decoding; Interference cancellation; Message passing; OFDM; Quadrature amplitude modulation; Coded OFDM; OFDM/OQAM; Soft Successive Interference Cancellation; bipartite graphs; message passing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication Systems (ISWCS), 2012 International Symposium on

Conference_Location

Paris

ISSN

2154-0217

Print_ISBN

978-1-4673-0761-1

Electronic_ISBN

2154-0217

Type

conf

DOI

10.1109/ISWCS.2012.6328354

Filename

6328354