Title :
Hardware unit for OVSF/Walsh/Hadamard code generation [3G mobile communication applications]
Author :
Rintakoski, Timo ; Kuulusa, Mika ; Nurmi, Jari
Author_Institution :
Tampere Univ. of Technol., Finland
Abstract :
A hardware unit for producing binary orthogonal variable spreading factor (OVSF), Hadamard and Walsh codes for WCDMA/CDMA2000 systems is presented. The generator uses a spreading factor, mode select, and the code index as the control input. The synthesized hardware unit consumes 512 NAND2-equivalent logic gates.
Keywords :
3G mobile communication; Hadamard codes; Walsh functions; binary codes; code division multiple access; logic design; spread spectrum communication; 3G mobile communication systems; CDMA2000; Hadamard codes; NAND equivalent logic gates; OVSF codes; WCDMA; Walsh codes; binary orthogonal variable spreading factor codes; code index control input; hardware code generation unit; mode select control input; Bandwidth; Communication system control; Control system synthesis; Downlink; Error correction; Error correction codes; Frequency synchronization; Hardware; Multiaccess communication; Spread spectrum communication;
Conference_Titel :
System-on-Chip, 2004. Proceedings. 2004 International Symposium on
Print_ISBN :
0-7803-8558-6
DOI :
10.1109/ISSOC.2004.1411169
