Simulation results for the comparative performance of a number of space-tim
e coding (STC) schemes in a multiple-input-multiple-output (MIMO) channel a
re presented, and compared with a single-antenna benchmark and two-antenna
space-time transit diversity (STTD) scheme. Both the space-time trellis cod
ing (STTC) and BLAST approaches offer high spectral efficiencies, but STTC
outperforms BLAST in terms of its power efficiency.