On the Effect of Time-Domain Per-Subcarrier Equalization for Band-Limited OQAM Based Multi-Carrier Modulation Systems

Author

Kunishima, Hiromitsu ; Koga, Hisao ; Muta, Osamu ; Akaiwa, Yoshihiko

Author_Institution

Grad. Sch. of Inf. Sci. & Electr. Eng., Kyushu Univ., Fukuoka

fYear

2008

fDate

11-14 May 2008

Firstpage

380

Lastpage

384

Abstract

As a method to realize an orthogonal multicarrier transmission, offset quadrature amplitude modulation based multi-carrier modulation (OQAM-MCM) has been known, where each subcarrier is strictly band-limited by a filter. Objective of this paper is to discuss the use of OQAM-MCM system instead of orthogonal frequency division multiplexing (OFDM) system as a countermeasure against frequency-selective fading. We investigate the performance of OQAM-MCM system with a small number of subcarriers employing a simplified time-domain per-subcarrier equalizer. Computer simulation results show that OQAM-MCM system can achieve both better spectrum efficiency and lower bit error rate (BER) performance than those of OFDM systems with insufficient guard interval (GI), when a time-domain per-subcarrier equalizer is used in both systems.

Keywords

equalisers; error statistics; quadrature amplitude modulation; time-domain analysis; band-limited OQAM; bit error rate performance; orthogonal multicarrier modulation system; quadrature amplitude modulation; spectrum efficiency; time-domain per-subcarrier equalization; Amplitude modulation; Bit error rate; Computer simulation; Delay effects; Equalizers; Filters; Intersymbol interference; OFDM modulation; Quadrature amplitude modulation; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE

Conference_Location

Singapore

ISSN

1550-2252

Print_ISBN

978-1-4244-1644-8

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2008.91

Filename

4525647