On the outage probability of a class of signaling schemes for multiple antennas

The concept of outage probability is appropriate for delay-constrained transmission over quasi-static channels since it serves as a useful lower bound for the frame error probability. In this work, we characterize a rich class of schemes, each member of which exhibits an identical asymptotic (in SNR) outage probability decay, given by maximum spatial diversity available in the system. The class includes several commonly used spatial power allocation and beamforming schemes, derived for varying amount of channel information at the transmitter and the receiver.