Channel Capacity Evaluation of MIMO Antenna Based on Eigenvalues of S-Parameter

Kentaro MURATA
Hiroshi SATO
Koichi OGAWA

IEICE TRANSACTIONS on Communications   Vol.E99-B    No.1    pp.95-103
Publication Date: 2016/01/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2015ISP0023
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas, Propagation and Wireless Systems Related to Topics in ISAP2014)
Category: Antennas and Propagation
MIMO,  capacity,  S-parameter,  

Full Text: PDF>>
Buy this Article

In this paper, a method of calculating the mean channel capacity based on S-parameter of MIMO (Multiple-Input Multiple-Output) antenna is proposed. This method exploits the correlation matrix calculated from the antenna S-parameter matrix, and offers highly accurate estimates of the mean channel capacity without dependence on SNR (Signal-to-Noise Ratio). The numerical and experimental results revealed that the proposed method can calculate the channel capacity with fair accuracy independent of the number and spacing of the antenna elements if the radiation efficiency is sufficiently high.