Transmission and reception of TDD multicarrier CDMA signals in mobile communications system

Author

Pu, Zhiyong ; You, Xiaohu ; Cheng, Shixin ; Wang, Haifeng

Author_Institution

Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China

Volume

3

fYear

1999

fDate

36342

Firstpage

2134

Abstract

Multicarrier CDMA (MC-CDMA) signal coming from each user suffers from the Multiaccess interference (MAI) caused by the loss of orthogonality among different user´s spreading codes. In order to restore the orthogonality, this paper presents a precoding (pre-equalization) technique to equalize each subchannel. Through the precoding transmission, the receiver can achieve multiaccess interference (MAI) free reception and will not amplify the power of the noise

Keywords

code division multiple access; decision feedback equalisers; encoding; fading channels; intersymbol interference; land mobile radio; multipath channels; multiuser channels; spread spectrum communication; DFE; ISI; MC-CDMA; TDD multicarrier CDMA signals; decision feedback equalizer; intersymbol interference; mobile communications system; multiaccess interference; multicarrier signal reception; multicarrier signal transmission; pre-equalization; precoding technique; precoding transmission; receiver; spreading codes; subchannel; Detectors; Fading; Maximum likelihood detection; Maximum likelihood estimation; Mobile communication; Multiaccess communication; Multicarrier code division multiple access; Multiple access interference; Power system restoration; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999 IEEE 49th

Conference_Location

Houston, TX

ISSN

1090-3038

Print_ISBN

0-7803-5565-2

Type

conf

DOI

10.1109/VETEC.1999.778428

Filename

778428