Design of common structures for CDMA systems

Author

Kim, Sung Dae ; Jeong, Sug H. ; Sunwoo, Myung H. ; Oh, Seong K.

Author_Institution

Sch. of Electr. & Comput. Eng., Ajou Univ., Suwon

Volume

1

fYear

2004

fDate

6-9 Dec. 2004

Firstpage

397

Abstract

This paper proposes flexible hardware structures of spreading and modulation for multi-mode CDMA systems. The proposed flexible structures supporting IS-95, CDMA2000 and WCDMA, include a pseudo noise code generator, a channelization code generator and a control circuit for signal flow control. The proposed design has been modeled by VHDL and synthesized using the Faraday 0.25 mum standard cell library. The synthesis results show the area reduction about 24.7% compared with the original code generators

Keywords

3G mobile communication; channel coding; code division multiple access; modulation; pseudonoise codes; spread spectrum communication; CDMA; IS-95; VHDL; WCDMA; cdma2000; channelization code generator; control circuit; flexible hardware structures; modulation; pseudo noise code generator; signal flow control; Circuit noise; Circuit synthesis; Control system synthesis; Flexible printed circuits; Flexible structures; Hardware; Multiaccess communication; Noise generators; Signal generators; Signal synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on

Conference_Location

Tainan

Print_ISBN

0-7803-8660-4

Type

conf

DOI

10.1109/APCCAS.2004.1412779

Filename

1412779