Limiting performance of block-fading channels with multipleantennas

摘要

We study the performance limits of a radio system consisting of atransmitter with t antennas and a receiver with r antennas over ablock-fading additive white Gaussian noise channel. We derive theoptimal coding scheme minimizing the information outage probability andanalyze its performance in terms of outage probability and delay-limitedcapacity. We show that, asymptotically, the delay-limited capacity growslinearly and is almost independent of the number of fading blocks Mwhich implies the existence of a trade-off between spatial (multipleantennas) and time diversity (interleaving)