Title :
Effect of User Presence on Receive Diversity and MIMO Capacity for Rayleigh-Fading Channels
Author :
Valenzuela-Valdés, Juan F. ; Martínez-González, Antonio M. ; Sánchez-Hernández, David
Author_Institution :
Univ. Polytech. de Cartagena, Cartagena
fDate :
6/29/1905 12:00:00 AM
Abstract :
The effects of the presence of the user on multiple-input-multiple-output (MIMO) performance for wireless communications systems is investigated through measurements in a reverberation chamber. Measured results have demonstrated that despite a decrement on the envelope correlation coefficient, a degradation of both diversity gain and MIMO capacity are expected when the user is present. While the validity of the correlation coefficients for predicting MIMO performance is limited in the presence of the user, the effects have also been found to be strongly dependent upon frequency, antenna topology, and user characteristics.
Keywords :
MIMO communication; Rayleigh channels; channel capacity; correlation methods; diversity reception; probability; MIMO capacity; Rayleigh-fading channels; antenna topology; correlation coefficient; multiple-input-multiple-output performance; receive diversity; reverberation chamber; wireless communications systems; Channel capacity; Degradation; Diversity methods; Frequency; Gain measurement; MIMO; Rayleigh channels; Reverberation chamber; Topology; Wireless communication; Correlation coefficient; Power absorbed; correlation coefficient; multiple-input–multiple-output (MIMO) systems; multiple-input-multiple-output systems; power absorbed;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.910932
