A novel time-frequency receiver for unknown fast fading channels

Author

Razaghi, Peyman ; Khalaj, Babak H.

Author_Institution

Fac. of Electr. Eng., Sharif Univ. of Technol., Iran

Volume

3

fYear

2004

fDate

21-25 March 2004

Firstpage

1572

Abstract

A new approach for data detection in fast fading channels is proposed. By using a combination of Rake receiver and sequential detection for fast fading channels, it is shown that system performance can be improved without prior knowledge of the channel. As will be shown in this paper, by combining spread spectrum signaling and sequential detection it is possible to exploit the time-frequency diversity of fast fading channels in a novel way. It is shown by simulation that combination of sequential detection and Rake receiver can effectively improve system performance, compared with equal gain combining.

Keywords

code division multiple access; diversity reception; fading channels; multiuser detection; radio receivers; spread spectrum communication; time-frequency analysis; Rake receiver; data detection; fast fading channels; multiuser CDMA system; sequential detection; spread spectrum signaling; time-frequency diversity; Diversity reception; Fading; Multiaccess communication; Multipath channels; Performance gain; RAKE receivers; Signal detection; Spread spectrum communication; System performance; Time frequency analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE

ISSN

1525-3511

Print_ISBN

0-7803-8344-3

Type

conf

DOI

10.1109/WCNC.2004.1311786

Filename

1311786