Title :
Enhancing switched diversity systems
Author :
Tsouri, Gill R. ; Wulich, Dov ; Goldfeld, Lev
Author_Institution :
Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
Abstract :
Switched diversity systems in correlated fading channels are considered. A procedure for decorrelating the diversity branches, prior to the switching process, is proposed. The performance of the proposed approach is compared to that without decorrelation for various switching strategies. It is shown that as a result of the decorrelation process, both outage probability and mean switching rate decrease, while the average SNR at selector output increases. Decorrelation is achieved by applying the Karhunen Loeve transform to the antennas outputs.
Keywords :
Karhunen-Loeve transforms; Rayleigh channels; antenna arrays; correlation methods; diversity reception; probability; telecommunication switching; Karhunen Loeve transform; antennas; correlated fading channel; decorrelation; outage probability; switched diversity system; Antenna arrays; Antenna measurements; Communication switching; Diversity methods; Diversity reception; Fading; Karhunen-Loeve transforms; Radio frequency; Receiving antennas; Switches;
Conference_Titel :
Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004
Print_ISBN :
0-7803-8545-4
DOI :
10.1109/SAM.2004.1502995
