An Enhanced OFDM/OQAM System Exploiting Walsh-Hadamard Transform

Author

Al-Attraqchi, M. ; Boussakta, S. ; Le Goff, S.

Author_Institution

Sch. of Electr., Electron. & Comput. Eng., Newcastle Univ., Newcastle upon Tyne, UK

fYear

2011

fDate

15-18 May 2011

Firstpage

1

Lastpage

5

Abstract

In this paper, an enhanced orthogonal frequency division multiplexing (OFDM) with offset quadrature amplitude modulation (OQAM) system utilising Walsh-Hadamard transform (WHT) is presented. This system demonstrates high resistance to the multipath transmission. The simulation results over standard ITU channels for pedestrian and vehicular confirm the improvement of the proposed system over the conventional OFDM and OFDM/OQAM systems by approximately 6 dB in terms of E_b/N_o at 10^-3 of bit error rate (BER). Furthermore, the computational complexity is reduced by 50% for the integration of the WHT in the system.

Keywords

Hadamard transforms; OFDM modulation; error statistics; multipath channels; quadrature amplitude modulation; BER; OFDM-OQAM system enhancement; Walsh-Hadamard transform; bit error rate; multipath transmission; offset quadrature amplitude modulation system; orthogonal frequency division multiplexing; standard ITU channels; Bit error rate; Filter banks; Finite impulse response filter; Modulation; OFDM; Prototypes; Transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd

Conference_Location

Budapest

ISSN

1550-2252

Print_ISBN

978-1-4244-8332-7

Type

conf

DOI

10.1109/VETECS.2011.5956311

Filename

5956311