Successive interference cancellation for cdma2000 using a software defined radio

Author

Mui, Shou Y.

Author_Institution

Digital Receiver Technol., Inc., Germantown, MD

Volume

3

fYear

2006

fDate

3-6 April 2006

Firstpage

1591

Lastpage

1596

Abstract

Signal strength imbalance due to imperfect power control and soft handoffs in direct-sequence code division multiple access (CDMA) cellular systems increases the mutual interference among users. This paper discusses the use of successive interference cancellation (SIC) for improving the reception of reverse link signals transmitted by cdma2000 mobile stations. A single-stage SIC algorithm has been implemented in a software defined radio (SDR) which employs general purpose digital signal processing (DSP) chips for interference cancellation and signal demodulation. Computer simulation of the DSP software and measured performance of the SDR have shown SIC to be an effective multiuser detector for the cdma2000 reverse link

Keywords

3G mobile communication; cellular radio; code division multiple access; demodulation; digital signal processing chips; interference suppression; radio links; radiofrequency interference; software radio; spread spectrum communication; SDR; cdma2000; cellular systems; digital signal processing chips; direct-sequence code division multiple access; mobile stations; reverse link signals; signal demodulation; signal strength imbalance; software defined radio; successive interference cancellation; Demodulation; Digital signal processing chips; Interference cancellation; Multiaccess communication; Power control; Signal processing; Signal processing algorithms; Silicon carbide; Software algorithms; Software radio;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2006. WCNC 2006. IEEE

Conference_Location

Las Vegas, NV

ISSN

1525-3511

Print_ISBN

1-4244-0269-7

Electronic_ISBN

1525-3511

Type

conf

DOI

10.1109/WCNC.2006.1696525

Filename

1696525