Effect of imperfect channel information on M-QAM SER performance of orthogonal space-time block codes

Author

Ko, Eunseok ; Kang, Changeon ; Hong, Daesik

Author_Institution

Dept. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea

Volume

1

fYear

2003

Firstpage

722

Abstract

The effect of imperfect channel information on the performance of orthogonal space-time block codes is considered in this paper. The symbol error rate of the M-QAM constellation of an orthogonal space-time block code is derived taking into account the effect of imperfect channel information in a Rayleigh fading channel. Derived results show that imperfect channel information destroys the orthogonality of OSTBC, resulting in an error floor that increases with the channel estimation and the normalized Doppler frequency.

Keywords

Rayleigh channels; block codes; channel estimation; diversity reception; error statistics; quadrature amplitude modulation; space-time codes; M-QAM; Rayleigh fading channel; channel estimation error; error floor; imperfect channel information; normalized Doppler frequency; orthogonal space-time block codes; quadrature amplitude modulation; symbol error rate; Block codes; Channel estimation; Diversity reception; Fading; Frequency estimation; Interference; Maximum likelihood decoding; Niobium; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual

ISSN

1090-3038

Print_ISBN

0-7803-7757-5

Type

conf

DOI

10.1109/VETECS.2003.1207638

Filename

1207638