Frequency domain equalization for the multicarrier spread spectrum system in multipath fading channel

Author

Xing, Hongnian ; Jarske, Petri

Author_Institution

Digital Media Inst., Tampere Univ. of Technol., Finland

fYear

1996

fDate

5-7 May 1996

Firstpage

603

Abstract

The combination of orthogonal frequency division multiplexing (OFDM) with direct sequence spread spectrum (DS/SS) is suitable for the design of a multiuser system robust against channel impairments. We propose a frequency domain equalization method for the OFDM-DS/SS system in mobile fading channels. It is shown that the learning constant is a key factor which is chosen depending on the channel conditions. By using the adaptive teaching constant, the average performance of the equalizer can be improved

Keywords

equalisers; fading; frequency division multiplexing; frequency-domain analysis; land mobile radio; multi-access systems; multipath channels; pseudonoise codes; spread spectrum communication; OFDM; OFDM-DS/SS system; adaptive teaching constant; average performance; channel conditions; channel impairments; direct sequence spread spectrum; frequency domain equalization; learning constant; mobile fading channels; multicarrier spread spectrum system; multipath fading channel; multiuser system; orthogonal frequency division multiplexing; Attenuation; Education; Equalizers; Fading; Frequency domain analysis; Multipath channels; OFDM; Robustness; Spread spectrum communication; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology Proceedings, 1996. ICCT'96., 1996 International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-2916-3

Type

conf

DOI

10.1109/ICCT.1996.545257

Filename

545257