Title :
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
fDate :
3/1/2004 12:00:00 AM
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 Eb/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;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2004.823400
