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On the ensemble average capacity of multiple‐input multiple‐output channels in outdoor line‐of‐sight multipath urban environments
Author(s) -
Lim H. M.,
Constantinou C. C.,
Arvanitis T. N.
Publication year - 2007
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2005rs003406
Subject(s) - microcell , mimo , multipath propagation , computer science , channel capacity , channel (broadcasting) , line of sight , uniform theory of diffraction , wideband , classification of discontinuities , telecommunications , topology (electrical circuits) , algorithm , electronic engineering , mathematics , scattering , physics , optics , mathematical analysis , engineering , combinatorics , astrophysics
Many statistical multiple‐input multiple‐output (MIMO) channel models have been extensively developed over the past few years. However, to better understand and exploit such MIMO channels, there is a need for a MIMO channel model that has a basis in the physical propagation mechanisms. In this paper, a wideband semideterministic MIMO model is derived to quantify the mean capacity in an urban line‐of‐sight (LOS) microcell. Specifically, the model considers scattering from large‐scale discontinuities on building faces randomly distributed along a street canyon. Using geometrical optics and the uniform theory of diffraction, the spatial correlations between any two receiving signals are evaluated and are used to compute the upper bound of the average MIMO capacity.