Equalization for orthogonal frequency division multiplexing system

Author

Siala, Mohamed ; Kaleh, Ghassan Kawas

Author_Institution

Ecole Nat. Superieure des Telecommun., Paris, France

fYear

1993

fDate

18-20 May 1993

Firstpage

649

Lastpage

652

Abstract

Multipath distortion in a digital mobile channel can be alleviated by using the orthogonal frequency division multiplexing system in which the discrete Fourier transform is used for multiplexing N subchannels. Albeit every subchannel is subject to a flat fading, the difference in fading level results in intersymbol interference. Five equalization methods are studied, and their performance is compared. It is concluded that the minimum-mean-squared-error block linear equalizer is a good compromise between complexity and performance

Keywords

computational complexity; digital radio; discrete Fourier transforms; equalisers; fading; frequency division multiplexing; intersymbol interference; land mobile radio; least mean squares methods; multipath channels; radiofrequency interference; complexity; digital mobile channel; discrete Fourier transform; equalization methods; flat fading; intersymbol interference; minimum-mean-squared-error block linear equalizer; orthogonal frequency division multiplexing; performance; Covariance matrix; Detectors; Equalizers; Equations; Error probability; Fading; Noise reduction; OFDM; Signal to noise ratio; Symmetric matrices;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1993., 43rd IEEE

Conference_Location

Secaucus, NJ

ISSN

1090-3038

Print_ISBN

0-7803-1267-8

Type

conf

DOI

10.1109/VETEC.1993.508775

Filename

508775