An Efficient Rate One STBC Scheme with 3 Transmit Antennas

In this paper, we propose an efficient rate one quasi-orthogonal space-time block code for three antenna system. In order to compensate the performance degradation due to quasi-orthogonal scheme, in this proposed scheme, we incorporate a selective receiver for decoding. The receiver divides the received signals into two groups, and two receiving antennas alternatively operate to receive the divided signals. By this way, we can eliminate the interference from the neighboring signals in the same symbol almost by half. The simulation results demonstrate that the proposed scheme can provide improved performance.