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ECOLE SUPÉRIEURE D'ÉLECTRICITÉ Une grande école d'ingénieurs au cœur des sciences de l'information,de l'énergie et des systèmes |
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THE SPACE FRONTIER: PHYSICAL LIMITS OF MULTIPLE ANTENNA INFORMATION TRANSFER
Abstract : In this paper, we study the capacity limits of dense multiantenna systems. We derive asymptotic capacity expressions for point-to-point and broadcast channels by applying recent tools from random matrix theory. In the case of broadcast channels, we focus on linear precoding techniques. We found that the asymptotic capacity depends only on the ratio between the size of the antenna array and the wavelength. This provides useful guidelines on the achievable limits of information transfer. In particular, it is shown that the total capacity grows unbounded if the transmitter has perfect knowledge on the channel, while the capacity saturates in the absence of channel knowledge at the transmitter. We provide numerical results supporting the theoretical derivations.
Cited literature [22 references]
https://hal-supelec.archives-ouvertes.fr/hal-00328141
Contributor : Samir Medina Perlaza <>
Submitted on : Thursday, October 9, 2008 - 6:09:35 PM
Last modification on : Monday, December 17, 2018 - 2:28:06 PM
Document(s) archivé(s) le : Tuesday, October 9, 2012 - 10:36:47 AM
Contributor : Samir Medina Perlaza <>
Submitted on : Thursday, October 9, 2008 - 6:09:35 PM
Last modification on : Monday, December 17, 2018 - 2:28:06 PM
Document(s) archivé(s) le : Tuesday, October 9, 2012 - 10:36:47 AM
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