JooHyun Yi

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-In this paper a joint interference cancellation and maximum likelihood (ML) decoding scheme is proposed for a space-time coded DS-CDMA system in a multipath fading channel. Arrival time difference between multiple transmit antennas by multipaths causes not only inter-symbol interference but also multiple-access interference and inter-antenna interference(More)
In this paper an interference cancellation scheme is applied to the space-time coded DSCDMA system in a Rayleigh fading channel having arrival time difference from multiple transmit antennas. Arrival time difference causes not only multiple-access interference but also inter symbol interference beWeen the desired signals transmitted from different antennas.(More)
In this paper, we propose the per-survivor adaptive interference canceller (PSAIC) based on group decoding for the uplink of the space-time trellis coded DS-CDMA system. The trellis-based group decoder (TBGD) obtains the trade-off between performance and complexity by decomposing the supertrellis for the entire decoder into the group-trellises for subsets(More)
In this letter, we propose an adaptive step-size algorithm for the adaptive interference canceller (AIC) in the spacetime coded DS-CDMA system. To improve the performance of the fixed step-size AIC (FS-AIC), the regular adaptive step-size algorithm is extended in complex domain and applied to the joint AIC and ML decoder scheme. Simulation results show that(More)
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