Filtered OFDM/OQAM transmission system

Author

Aoude, Mohamad A. ; Vallet, Robert A.

Author_Institution

Telecom Paris, France

Volume

2

fYear

2003

Firstpage

1430

Abstract

In this article we consider computationally efficient FFT-based technique for the design of pulse shaping filters with arbitrary length and overlapping factors, for OFDM system. We implemented an OFDM/OQAM transmission system based on shaping filters. The carrier spacing is carefully selected so that the carriers are spectrally orthogonal and the receiver can separate them. In this way, spectral overlapping among sub-carriers is allowed and a spectral efficiency higher than ordinary frequency division multiplexing is achieved. In addition, the implementation of OFDM is simple and very efficient because of the use of FFT algorithm and polyphase filtering.

Keywords

OFDM modulation; channel bank filters; fast Fourier transforms; frequency allocation; frequency division multiplexing; pulse shaping circuits; quadrature amplitude modulation; carrier spacing; fast-Fourier transform technique; filter-bank based theory; filtered OFDM/OQAM transmission system; orthogonal frequency division multiplexing; orthogonal quadrature amplitude modulation; polyphase filtering; pulse shaping filter design; spectral efficiency; spectral overlapping; spectrally orthogonal carriers; Filtering; Filters; Frequency conversion; Interference; OFDM; Pulse modulation; Pulse shaping methods; Telecommunication computing; Time frequency analysis; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual

ISSN

1090-3038

Print_ISBN

0-7803-7757-5

Type

conf

DOI

10.1109/VETECS.2003.1207865

Filename

1207865