Abstract:

A phase-sweeping space-time bit interleave coded modulation (PS-ST-BICM) is presented. By expanding the dimensions of sweeping matrix, the correlation was achieved between the adjacent code matrices, and thereby the higher time diversity gain was realized which effectively avoided possible burst errors in block fading channels. The optimum design criterion of the rotation matrix was proposed to maximize both diversity and coding gain. Then the Singleton bound and BER performances were theoretically analyzed. The simulation results proved that the performance of the new scheme was improved greatly in the Rayleigh block fading channels.

Key words: bit interleave coded modulation, phase sweeping, block fading channel