Bounding the ergodic capacity of asymmetric 2×2 dual-polarized channels

We consider asymmetric MIMO channel models in an analysis of ergodic capacity for multi-polarized MIMO systems. Using Jensen's inequality we derive an upper bound for various asymmetric channel realizations that are parameterized by the co-polarized power ratio, cross-polarization discriminatio...

Full description

Saved in:
Bibliographic Details
Published inMILCOM 2012 - 2012 IEEE Military Communications Conference pp. 1 - 6
Main Authors Talebi, F., Pratt, T. G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2012
Subjects
Approximation methods
Numerical models
Rician channels
Signal to noise ratio
Upper bound
Vectors
Online AccessGet full text

Cover

More Information
Summary:We consider asymmetric MIMO channel models in an analysis of ergodic capacity for multi-polarized MIMO systems. Using Jensen's inequality we derive an upper bound for various asymmetric channel realizations that are parameterized by the co-polarized power ratio, cross-polarization discrimination measures, and subchannel Rician K-factors. Computation of a lower bound is complicated by the inherent asymmetry in the model, which prevents use of existing random matrix theories developed for Wishart matrices and Quadratic forms of Gaussian vectors. A lower bound is derived based on Minkowski's inequality and an approximation is also proposed that is shown numerically to be close to the lower bound.
ISBN:1467317292
9781467317290
ISSN:2155-7578
2155-7586
DOI:10.1109/MILCOM.2012.6415801