Title :
Bit-interleaved coded differential space-time modulation
Author :
Lampe, Lutz H J ; Schober, Robert
Author_Institution :
Lehrstuhl fur Nachrichtentech. II, Erlangen-Nurnberg Univ., Erlangen, Germany
fDate :
9/1/2002 12:00:00 AM
Abstract :
Bit-interleaved coded differential space-time modulation for transmission over spatially correlated Ricean flat fading channels is discussed. For improved noncoherent detection without channel state information at the receiver, iterative decoding employing hard-decision feedback and prediction-based metric computation is applied. The performance is assessed based on the associated cutoff rate, analytical expressions for the bit error rate and the outage probability, respectively and simulations. It is shown that the proposed scheme offers high power efficiency exploiting both space and time diversity, while the computational complexity is kept at a relatively low level.
Keywords :
Rician channels; computational complexity; diversity reception; error statistics; interleaved codes; iterative decoding; modulation coding; signal detection; bit error rate; bit-interleaved space-time modulation; coded differential space-time modulation; computational complexity; cutoff rate; hard-decision feedback; high power efficiency; iterative decoding; noncoherent detection; outage probability; prediction-based metric; simulations; space diversity; spatially correlated Ricean flat fading channels; time diversity; Analytical models; Bit error rate; Channel state information; Computational modeling; Fading; Interleaved codes; Iterative decoding; Modulation coding; Performance analysis; State feedback;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2002.802557