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Impact of antenna correlation on the capacity of multiantenna channels
Tulino, Antonia M.; Lozano Solsona, Àngel; Verdú, Sergio
Universitat Pompeu Fabra
This paper applies random matrix theory to obtain analytical characterizations of the capacity of correlated multiantenna channels. The analysis is not restricted to the popular separable correlation model, but rather it embraces a more general representation that subsumesmost of the channel models that have been treated in the literature. For arbitrary signal-to-noise ratios (SNR), the characterization is conducted in the regime of large numbers of antennas. For the low- and high-SNR regions, in turn, we uncover compact capacity expansions that are valid for arbitrary numbers of antennas and that shed insight on how antenna correlation impacts the tradeoffs between power, bandwidth and rate.
Ràdio -- Antenes
Comunicació sense fil, Sistemes de
Tractament del senyal
Channel capacity
Multiantenna arrays
Random matrices
Fading channels
Antenna correlation
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