Tight BER bounds for iteratively decoded bit-interleaved space-time coded modulation

Author

Huang, Yuheng ; Ritcey, James A.

Author_Institution

Dept. of Electr. Eng., Univ. of Washington, Seattle, WA, USA

Volume

8

Issue

3

fYear

2004

fDate

3/1/2004 12:00:00 AM

Firstpage

153

Lastpage

155

Abstract

Iteratively decoded bit-interleaved space-time coded modulation (BI-STCM) greatly lowers bit error rate (BER) over fast Rayleigh fading multiple-input multiple-output (MIMO) channels. We develop a general, tight and efficient theoretical error-free feedback bound (EF bound) to analyze the asymptotic BER. The convergence to the EF bound and the accuracy of the prediction are verified by simulation. With the best rate 1/2 4-state convolutional code and the 16-QAM modified set partitioning labeling, the BER of 10^-6 can be achieved at E_b/N₀=1.6 dB with 2 transmit and 2 receive antennas.

Keywords

MIMO systems; Rayleigh channels; convolutional codes; error statistics; interleaved codes; iterative decoding; modulation coding; quadrature amplitude modulation; space-time codes; 16-QAM modified set partitioning labeling; asymptotic BER analysis; bit error rate; bit-interleaved coded modulation; convolutional code; fast Rayleigh fading MIMO channel; iteratively decoded modulation; multiple-input multiple-output channel; receive antenna; receiver; space-time code; theoretical error-free feedback bound convergence; tight BER bound; transmit antenna; transmitter; wireless MIMO system; Accuracy; Bit error rate; Convergence; Convolutional codes; Feedback; Iterative decoding; MIMO; Modulation coding; Predictive models; Rayleigh channels;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2004.823400

Filename

1278305