Title :
Satellite diversity exploitation in mobile satellite CDMA systems
Author :
Corazza, Giovanni Emanuele ; Caini, Carlo
Author_Institution :
Dept. of Electron., Bologna Univ., Italy
Abstract :
The paper addresses the exploitation of satellite diversity in a satellite mobile network. In particular, we focus on the impact of diversity on service availability and on system capacity, considering the forward link of a CDMA system with a multi-satellite and multi-beam architecture. The analysis includes the effects of path blockage, imperfect power control, and fading correlation. We show that satellite diversity is essential in providing service availability in urban and suburban areas. Also, we show that the impact of satellite diversity on system capacity may be positive or negative, mainly depending on the transmission channel characteristics. In particular, diversity becomes very beneficial whenever fading correlation is considered. The analytical results have been validated by means of Monte Carlo simulation
Keywords :
Monte Carlo methods; code division multiple access; diversity reception; fading channels; land mobile radio; mobile satellite communication; power control; Monte Carlo simulation; fading correlation; forward link; imperfect power control; mobile satellite CDMA systems; multi-beam architecture; multi-satellite architecture; path blockage; satellite diversity exploitation; satellite mobile network; service availability; suburban areas; system capacity; transmission channel characteristics; urban areas; 3G mobile communication; Artificial satellites; Availability; Fading; Intelligent networks; Mobile computing; Multiaccess communication; Power control; Satellite constellations; Urban areas;
Conference_Titel :
Wireless Communications and Networking Conference, 1999. WCNC. 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5668-3
DOI :
10.1109/WCNC.1999.796925
