Cyclic Wiener filtering based multirate DS-CDMA receivers

Author

Sabharwal, Ashutosh ; Mitra, Urbashi ; Moses, Randolph

Author_Institution

Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

fYear

1999

fDate

1999

Firstpage

1129

Abstract

Detection methods for multiple rate direct sequence code division multiple access (DS-CDMA) signalling are addressed. Attention is focused on the development of receivers based on the minimum mean squared error (MMSE). Due to the cyclostationarity of the multirate signal, a representation of the multirate signal in terms of the Fourier basis is possible. This expansion facilitates construction of the MMSE receivers. Both variable spreading gain as well as variable chipping rate DS-CDMA access schemes are considered. For the multiple chipping rate system, the effect of the front-end filter bandwidth on the receiver performance is studied. Simulation results are provided to compare the performance of the proposed receivers

Keywords

Fourier analysis; Wiener filters; code division multiple access; filtering theory; least mean squares methods; multiuser channels; radio receivers; signal detection; signal representation; spread spectrum communication; DS-CDMA signalling; Fourier basis; MMSE receivers; cyclic Wiener filtering; cyclostationary multirate signal; detection methods; direct sequence code division multiple access; front-end filter bandwidth; minimum mean squared error; multiple chipping rate system; multirate DS-CDMA receivers; multirate signal representation; receiver performance; simulation results; variable chipping rate; variable spreading gain; Bandwidth; Direct-sequence code-division multiple access; Frequency; Gain; Multiaccess communication; Multipath channels; Proposals; Wideband; Wiener filter; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE

Conference_Location

New Orleans, LA

ISSN

1525-3511

Print_ISBN

0-7803-5668-3

Type

conf

DOI

10.1109/WCNC.1999.796849

Filename

796849