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In this paper, we present an asymptotical analysis of channel capacity of Bell Labs layered space-time (BLAST) architectures based on a zero-forcing (ZF) criterion in the sense of signal-to-noise ratio (SNR). We begin by introducing a new relationship related to multi-input multi-output (MIMO) channel capacity. We prove that diagonal Bell Labs space-time (D-BLAST) attains the lower bound for MIMO...
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