NDLI: Characteristics of the Hexapolarized MIMO Channel over Free-Space and Three Non-Free-Space Scenarios

Content Provider	IEEE Xplore Digital Library
Author	Dazhi Piao
Copyright Year	2002
Abstract	The eigenvalues and channel capacity of the hexapolarized MIMO system in free-space (FS) and three non-FS scenarios are investigated, based on the exact determinant electromagnetic field expressions. Computation results show that there are generally 6 nonzero eigenvalues in all the four scenarios. However, the values of the eigenvalues are affected strongly by the link distance, the antenna position and the scattering condition, thus some of the eigenvalues are too small to contribute to the overall channel capacity. Interestingly, the smallest two eigenvalues and the corresponding hexapolarized MIMO channel capacity can be increased obviously with the increasing of the number of scattering planes, especially in the far field. Furthermore, more scattering can increase the robustness of the multipolarized MIMO system over the location of the array. However, in those non-FS channels, a threefold increase of the capacity over that in the FS channel is not obtained, and the maximum capacity gain is 2.15. Fortunately, a threefold capacity gain of using the tri-polarized electric dipoles over the one-polarized electric dipole can be obtained in most cases of the three-mirror (3M) channel. Finally, some numerical simulations were conducted, the theoretical predicted hexapolarized MIMO capacities agree well with that obtained from the simulations.
Starting Page	4174
Ending Page	4182
Page Count	9
File Size	631731
File Format	PDF
ISSN	15361276
Volume Number	12
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Eigenvalues and eigenfunctions MIMO Scattering Channel capacity Magnetic resonance imaging Electromagnetics Nickel capacity Hexapolarized MIMO scattering eigenvalue
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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