|Capacity of Line-of-Sight MIMO Channels
|Heedong Do, Namyoon Lee, Pohang University of Science and Technology, Korea (South); Angel Lozano, Universitat Pompeu Fabra, Spain
|S.2: Channel Capacity
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|We establish an upper bound on the information-theoretic capacity of line-of-sight (LOS) multiantenna channels with arbitrary antenna arrangements and identify array structures that, properly configured, can attain at least 96.6% of such capacity at every signal-to-noise ratio (SNR). In the process, we determine how to configure the arrays as a function of the SNR. At low- and high-SNR specifically, the configured arrays revert to simpler structures and become capacity-achieving.