MLSE receiver with recursive interference cancellation for EDGE STTD systems in frequency-selective channels

Author

Wang, Haifeng ; Li, Zhenhong ; Bu, Zhiyong ; Lilleberg, Jorma

Author_Institution

Nokia Mobile Phones, Nokia Incorporation, Oulu, Finland

Volume

2

fYear

2003

fDate

20-20 March 2003

Firstpage

925

Abstract

Transmit diversity techniques use multiple transmit antennas to enhance the spectral efficiency and data rate. Space time transmit diversity (STTD) combats the fading effects in frequency-non-selective channel efficiently. However, the interference enhanced by multi-antenna transmission and multipath environments will severely worsen the system performance and ruin the transmit diversity due to the symbol delays of EDGE systems in frequency-selective channels. In this paper a novel maximum likelihood sequence estimation (MLSE) receiver with recursive interference cancellation (IC) is proposed for EDGE STTD systems in practical environments. The proposed recursive ICMLSE receiver suppress the enhanced co-antenna and co-channel interference, restores the transmit diversity and multipath diversity, and significantly improve the system performance.

Keywords

3G mobile communication; Rayleigh channels; antenna arrays; cochannel interference; diversity reception; interference suppression; maximum likelihood sequence estimation; multipath channels; radio receivers; EDGE STTD systems; MLSE receiver; data rate; frequency nonselective channel efficiently; frequency selective channels; maximum likelihood sequence estimation; multipath diversity; multiple transmit antennas; recursive interference cancellation; space time transmit diversity; spectral efficiency; symbol delays; transmit diversity techniques; Delay systems; Fading; Frequency diversity; GSM; Interference cancellation; Maximum likelihood estimation; Receiving antennas; Recursive estimation; System performance; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking, 2003. WCNC 2003. 2003 IEEE

Conference_Location

New Orleans, LA, USA

ISSN

1525-3511

Print_ISBN

0-7803-7700-1

Type

conf

DOI

10.1109/WCNC.2003.1200495

Filename

1200495