Title :
Path diversity for non-geostationary orbit satellite communication systems using the constellation of GPS
Author :
Lin, Hsin-Piao ; Yang, Chieh ; Sun, Jwo-Shim
Author_Institution :
Dept. of Electron. Eng., Nat. Taipei Univ. of Technol., Taiwan
Abstract :
The analysis of the received data of GPS to study the path diversity effects of NGO satellite systems is presented. Measurements are conducted in the downtown Taipei vicinity. Three cases of different user mobility (fixed-point, pedestrian, and vehicular) are examined, and the switching and maximum ratio combining method are compared for path diversity gain. The results imply that significant fade reduction and great diversity gain can be expected in NGO satellite PCS. By combining the received signals of 2 satellites, significant diversity gain can be obtained at any given user scenario
Keywords :
Global Positioning System; diversity reception; fading; mobile satellite communication; personal communication networks; telecommunication switching; GPS; NGO satellite systems; PCS; Taipei; data analysis; fade reduction; fixed-point mobility; maximum ratio combining; non-geostationary orbit; path diversity gain; pedestrian mobility; satellite communication systems; switching; vehicular mobility; Bandwidth; Data engineering; Diversity methods; Diversity reception; Fading; Global Positioning System; Integrated optics; Lattices; Optical design; Optical scattering; Optical waveguides; Photonic crystals; Photonic integrated circuits; Road transportation; Satellite communication; Satellite constellations; Semiconductor waveguides; Sun; Switches;
Conference_Titel :
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-5435-4
DOI :
10.1109/VETECF.1999.800345
