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Near-Optimum STBC / SFBC using 1-Bit Feedback for the 4-Transmit Antenna system

In this paper, new space time/frequency block coding (STBC/SFBC) scheme with angle feedback for 4-transmit antennas is proposed to achieve the full diversity gain with the full code rate. This scheme can be generalized with multiple receive antennas. With the proposed scheme, we show the channel characteristics can be much improved with as small as 1-bit feedback overhead. Simulation shows that the proposed scheme with 1-bit feedback achieves near-optimum performance.