Please use this identifier to cite or link to this item: http://www.repositorio.ufc.br/handle/riufc/4101
Title in Portuguese: An analytical closed-form lower-bound on ergodic capacity of correlated rayleigh-fading MIMO channels
Author: Guimarães, Antonio Alisson Pessoa
Cavalcante, Charles Casimiro
Keywords: Teleinformática
Antenas
Wireless
Issue Date: 2012
Publisher: International Symposium on Wireless Communication Systems
Citation: GUIMARÃES, A. A. P. ; CAVALCANTE, C. C. An analytical closed-form lower-bound on ergodic capacity of correlated rayleigh-fading MIMO channels. In: INTERNATIONAL SYMPOSIUM ON WIRELESS COMMUNICATION SYSTEMS, 2012, Fortaleza. Anais... Fortaleza: ISWCS, 2012, p. 681-658
Abstract: In this paper, the ergodic capacity of multiple antenna systems over spatially correlated Rayleigh-fading channels is investigated under the assumption that the channel state information (CSI) is unknown at the transmitter and perfectly known at the receiver. We derive a lower-bound expression, in closed form, for the ergodic capacity through the use of majorization theory and the probability density function (PDF) of the sum of Gamma random variables, which is represented by an infinite series. Furthermore, we also obtain other lower-bounds from the truncation of such series, and we associate truncation errors. Finally, the proposal of the paper is compared with a lower-bound reported in the literature.
URI: http://www.repositorio.ufc.br/handle/riufc/4101
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