Filter design for the conjugate OFDM-OQAM system

Author

Laurenti, Nicola ; Vangelista, Lorenzo

Author_Institution

Dipartimento di Elettronica e Inf., Padova Univ., Italy

fYear

2000

fDate

2000

Firstpage

267

Lastpage

272

Abstract

We present a filter design procedure for a novel multicarrier modulation scheme, the conjugate OFDM-OQAM, which only requires amplitude tailoring of the prototype filter frequency response, regardless of its phase. It achieves good interchannel interference (ICI) and intersymbol interference (ISI) rejection, while still maintaining maximum spectral efficiency and a good time-frequency localization of the transmission pulses. Loosening the phase constraint allows the use of an effective technique for matched filter design, developed by Samueli (1988). Through this technique we are able to design a system with higher performance than standard OFDM-OQAM systems with the same prototype filter length

Keywords

FIR filters; OFDM modulation; adjacent channel interference; frequency response; interference suppression; intersymbol interference; matched filters; network synthesis; quadrature amplitude modulation; ICI; ISI; conjugate OFDM-OQAM system; interchannel interference rejection; intersymbol interference rejection; matched filter design; maximum spectral efficiency; multicarrier modulation; performance; phase constraint; prototype filter frequency response; prototype filter length; time-frequency localization; transmission pulses; Finite impulse response filter; Frequency response; Image analysis; Interference; Matched filters; Phase modulation; Prototypes; Pulse shaping methods; Signal analysis; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing and Analysis, 2000. IWISPA 2000. Proceedings of the First International Workshop on

Conference_Location

Pula

Print_ISBN

953-96769-2-4

Type

conf

DOI

10.1109/ISPA.2000.914924

Filename

914924