Title :
Multiple branch switched antenna diversity in Rayleigh and Rician fading channels
Author_Institution :
Fac. of Eng., Univ. of Technol., Sydney, NSW, Australia
fDate :
6/23/1905 12:00:00 AM
Abstract :
A new performance evaluation of switched antenna diversity, for the switch-and-examine strategy, is described. Expressions are derived for three-branch switched diversity with unequal branch statistics for independent Rayleigh and Rician fading channels. Comparisons are made using two and three-branch diversity with equal and unequal branch statistics. New expressions are also derived for an N-branch diversity system with equal branch statistics. The results of an analysis of various higher order diversity systems with equal statistics are compared to each other and to a no-diversity system. It is clearly demonstrated that, as the order of the diversity system increases, performance improves below and just above the switching threshold
Keywords :
Rayleigh channels; Rician channels; antenna arrays; diversity reception; multipath channels; radio links; statistical analysis; N-branch diversity; Rayleigh fading channels; Rician fading channels; equal branch statistics; higher order diversity systems; multipath; multiple branch switched antenna diversity; radio channel; switch-and-examine strategy; three-branch diversity; two-branch diversity; unequal branch statistics; Antenna measurements; Australia; Diversity reception; Fading; Frequency diversity; Higher order statistics; Receivers; Sampling methods; Statistical analysis; Switches;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956510
