Title :
Experimental characterization of NLOS broadband millimeter wave links
Author :
Talbi, Larbi ; Ghaddar, M.
Author_Institution :
Dept. of Comput. Sci. & Eng., Univ. of Quebec - UQO, Gatineau, QC, Canada
Abstract :
This study investigates the potential use of microwave scatterers (MS) for data transmission relay in order to extend the signal coverage over shadowed remote places where lineof-sight (LOS) transmission is not present. Series of indoor NLOS-CW (non-LOS continuous wave) measurements over the 29-30 GHz band were conducted at the intersection of two hallways in presence of two metallic cylinders of different diameters, a right angle standing metallic corner, and a flat surface metallic reflector. Results indicate that for systems operating at a short range of tens of meters, MS provides an alternative to LOS systems, cables or the use of repeaters. It was also found that some types of MS yield better signal coverage while others deflect the signal destructively. Hence, the received signal strength depends strongly on the MS´s shape, size and surface roughness.
Keywords :
broadband networks; electromagnetic wave scattering; indoor radio; millimetre wave measurement; radio links; radio repeaters; radiowave propagation; relay networks (telecommunication); telecommunication cables; MS; NLOS broadband millimeter wave link; cable; continuous wave; data transmission relay; flat surface metallic reflector; frequency 29 GHz to 30 GHz; indoor NLOS-CW measurement; line-of-sight transmission; metallic cylinder; microwave scatterer; radio repeater; received signal strength; right angle standing metallic corner; shadowed remote place; signal coverage extension; surface roughness; Indoor radio propagation; Microwave scatterer; Millimeter waves; Non line of sight;
Conference_Titel :
Wireless Communications and Applications (ICWCA 2012), IET International Conference on
Conference_Location :
Kuala Lumpur
Electronic_ISBN :
978-1-84919-550-8
DOI :
10.1049/cp.2012.2073