Abstract
In this paper, we investigate feedback schemes for the space-time turbo code with two transmit antennas in a quasi-static Rayleigh fading channel. The performance of the space-time code can be improved by using the diagonal weighting scheme according to the feedback information of the channel (EG Larsson, et al., 2002), (G Ganesan, et al., 2002). However, from simulation, it was not a proper feedback scheme for the space-time turbo code. To improve the performance of the space-time turbo code, we propose the new feedback schemes with the feedback information of the channel gain and phase, respectively. Simulation results show that the space-time turbo code using the proposed feedback schemes has better performance than the conventional space-time turbo code.
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