Software implementation and performance evaluation of WCDMA physical layer

Author

Kim, Taekyu ; Park, Sin-Chong

Author_Institution

Inf. & Commun. Univ., Daejeon, South Korea

Volume

47

Issue

4

fYear

2001

fDate

11/1/2001 12:00:00 AM

Firstpage

880

Lastpage

884

Abstract

In this paper, we implemented the WCDMA physical layer in terms of full software in a commercial computer that has a 1.4 GHz-clocked Pentium^TM CPU. The communication operation is done with downlink modulation and demodulation including the transport channel. The established system requires about 12 seconds for processing the data of 40 ms in the first prototype version. After continuous optimization the fourth system requires 250 ms for the same data. Consequently, when the clock speed of the CPU becomes faster than 8 GHz, alternatively, when partial hardware modules dedicated to several critical blocks in terms of processing time are employed, the real time software WCDMA physical layer system can be operated in a general-purpose computer

Keywords

broadband networks; cellular radio; code division multiple access; demodulation; modulation; 1.4 GHz; W-CDMA physical layer; WCDMA; commercial computer; demodulation; downlink modulation; general-purpose computer; hardware version clock speed; partial hardware module; prototype version; transport channel; Clocks; Demodulation; Downlink; Hardware; Multiaccess communication; Physical layer; Physics computing; Prototypes; Software performance; Software prototyping;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.982803

Filename

982803