Abstract:The ability of ideal MIMO channels has a high-SNR slope that equals the minimum of the number of transceiver antennas. This work evaluates if this result holds when there are distortions from physical transceiver limitations. We prove analytically that such physical MIMO/SISO channels have a finite upper capacity limit, for any channel distribution and SNR. The high-SNR slope thus collapses to zero. This appears discouraging, but we prove the encouraging result that the relative capacity gain of employing MIMO… Show more
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