Performance Analysis Of A Dsttd System With Decision-Feedback Detection

Author

Kim, Hyounkuk ; Park, Hyuncheol ; Kim, Taejoon ; Eo, Iksoo

Author_Institution

Sch. of Eng., Inf. & Commun. Univ., Daejeon

Volume

4

fYear

2006

fDate

14-19 May 2006

Abstract

We investigate closed-form bit error rate (BER) expressions for the double space-time transmit diversity (DSTTD) system with a zero-forcing decision-feedback (ZF-DF) detector. We show that the lower Alamouti´s STTD unit can obtain the second order diversity gain. However, the upper one cannot guarantee the fourth order diversity due to the effect of error propagation. For example, it simply gives 3.5 dB signal-to-noise ratio (SNR) advantage over the lower one at the bit error rate (BER) of 10^-3. Under the same environment, overall BER performance also suffers from 5.6 dB performance degradation over a maximum likelihood (ML) detector

Keywords

automatic repeat request; diversity reception; error statistics; matrix algebra; maximum likelihood detection; BER; DSTTD system; SNR; closed-form bit error rate; double space-time transmit diversity; fourth order diversity; maximum likelihood detector; signal-to-noise ratio; the bit error rate; zero-forcing decision-feedback detector; Bit error rate; Detectors; Diversity methods; Frequency; Information technology; Matrix decomposition; Maximum likelihood detection; Performance analysis; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on

Conference_Location

Toulouse

ISSN

1520-6149

Print_ISBN

1-4244-0469-X

Type

conf

DOI

10.1109/ICASSP.2006.1661077

Filename

1661077