Title :
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
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;
Conference_Titel :
Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on
Conference_Location :
Tainan
Print_ISBN :
0-7803-8660-4
DOI :
10.1109/APCCAS.2004.1412779
