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We propose a transmitter diversity method to be used in OFDM systems. The proposed method uses 2 transmit antennas and 4 distinct subcarriers to obtain eighth order transmit diversity gain. The proposed method utilizes both space and frequency diversity. The simulation results show that the proposed method can provide more gain than QOSTBC for DVB-H and IEEE 802.20.
In this paper we propose a multi-channel simulator that produces a realistic time-series of the fading process affecting signal transmission in satellite systems. The proposed simulator takes into account the temporal, spatial and polarization properties affecting these processes. In addition, we determine the impact on the total capacity of an application that utilizes the spatial-polarization channels...
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