Code reassignment scheme on CDMA smart antenna systems

Author

Kuwahara, Mikio ; Doi, Nobukazu

Author_Institution

Central Res. Lab., Hitachi Ltd., Tokyo, Japan

Volume

3

fYear

2000

fDate

2000

Firstpage

2137

Abstract

This paper proposed code reassignment scheme on CDMA smart antenna systems. The proposed scheme suppresses multi-channel access interference (MAI) caused by the shortage of an orthogonal spreading code in a sector. Computer simulation shows an 18% capacity gain and 3 dB reduction of Tx power on the down link

Keywords

Rayleigh channels; adaptive antenna arrays; adjacent channel interference; array signal processing; cellular radio; code division multiple access; interference suppression; multipath channels; multiuser channels; radio links; spread spectrum communication; 3rd generation mobile communication systems; CDMA smart antenna systems; Rayleigh fading; capacity gain; cellular radio; code reassignment; computer simulation; double gap multipath model; down link; inter-channel interference; lognormal distribution; multi-channel access interference suppression; multipath model; orthogonal spreading code; shadowing; spatio-temporal correlation; spreading code sequence; transmitter power reduction; Antennas and propagation; Computer simulation; Interchannel interference; Interference suppression; Laboratories; Multiaccess communication; Multiple access interference; Propagation delay; Timing; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st

Conference_Location

Tokyo

ISSN

1090-3038

Print_ISBN

0-7803-5718-3

Type

conf

DOI

10.1109/VETECS.2000.851650

Filename

851650