An Application of Separate Coding to Space-Time Turbo-Coded Modulation

Kohsuke HARADA  Shingo ATA  Ikuo OKA  Chikato FUJIWARA  

IEICE TRANSACTIONS on Communications   Vol.E86-B   No.1   pp.380-383
Publication Date: 2003/01/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
space-time coding,  turbo-coded modulation,  Rayleigh fading channel,  

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In this paper, the separate coding scheme is applied to space-time turbo-coded modulations (ST-TuCM). The separate coding for ST-TuCM uses the plural number of component encoders, each of which is a binary turbo encoder in the transmitter. The receiver has component decoders corresponding to the component encoders. The likelihood values derived by the component decoders are employed as a-priori information of transmitted signal from other transmit antennas in iterative demodulation-decoding. Simulation results under the fast Rayleigh fading channel show that separate coding and iterative demodulation-decoding improve the bit error rate performance.