Second-order statistics for diversity-combining of non-identical correlated hoyt signals

• Published in: IEEE transactions on communications Vol. 56; no. 2; pp. 183 - 188
• Main Authors: Fraidenraich, G., Yacoub, M.D., Mendes, J.R., Filho, J.C.S.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.02.2008; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Channels; Communications Society; Correlation; Covariance matrix; Diversity reception; Error analysis; Exact sciences and technology; Fading; Genetic expression; Level crossings; Performance analysis; Rayleigh channels; Signal design; Statistics; Systems, networks and services of telecommunications; Telecommunications; Telecommunications and information theory; Transmission and modulation (techniques and equipments); Fading channels; Fading; Statistical method; Second order; Diversity combining; Level crossing rate; Order statistic; Hoyt fading channels; maximal-ratio combining; selection combining; Average fade duration; equal-gain combining
• ISSN: 0090-6778; 1558-0857
• DOI: 10.1109/TCOMM.2008.050024

In this paper, exact expressions for the level crossing rate (LCR) and average fade duration (AFD) for two-branch selection, equal-gain and maximal-ratio combining systems in a Hoyt fading environment are presented. The expressions apply to unbalanced, non-identical, correlated diversity channels and have been validated by specializing the general results to some particular cases whose solutions are known. In passing, the joint bidimensional envelope-phase Hoyt distribution with arbitrary fading parameters is obtained.