Title :
Diversity combining for mobile FSO nodes in SIMO setup
Author :
Moradi, Hassan ; Refai, Hazem H. ; LoPresti, Peter G. ; Atiquzzaman, Mohammed
Author_Institution :
Electr. & Comput. Eng., Univ. of Oklahoma, Tulsa, OK, USA
Abstract :
The term mobile FSO refers to wireless optical nodes with mobility capabilities. Mobile FSO has emerged as a way to combat some of limitations facing FSO links, i.e. incompatibility of transmitters and receivers relative to movement and misalignment. In this paper we utilize an angular diversity model for characterizing the performance of mobile FSO over atmospheric turbulence. Switch-and-examine combining (SEC) technique is our suggestion for the diversity combining solution in such unbalanced multi-transceiving configuration. The channel fading is modeled as a lognormal distribution with spatially correlated samples. Analytical/ statistical discussion on the resultant output is presented and bit error performance and processing load are numerically evaluated and compared to a selection combining (SC) diversity.
Keywords :
atmospheric turbulence; diversity reception; error statistics; log normal distribution; mobile radio; SIMO setup; atmospheric turbulence; bit error performance; diversity combining; lognormal distribution; mobile FSO nodes; selection combining diversity; switch-and-examine combining technique; Apertures; Diversity reception; Fading; Mobile communication; Receivers; Signal to noise ratio; Switches; Channel state information (CSI); Mobile FSO; Selection combining (SC); Spatial diversity; Switch-and-examine combining (SEC); Switched diversity;
Conference_Titel :
Wireless Communications and Mobile Computing Conference (IWCMC), 2011 7th International
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-9539-9
DOI :
10.1109/IWCMC.2011.5982778
