DocumentCode :
343665
Title :
Simulation of a high frequency satellite link with a fade countermeasure
Author :
Grémont, B.C. ; Filip, M.
Author_Institution :
Portsmouth Univ., UK
fYear :
1999
fDate :
April 1 1999-March 31 1999
Firstpage :
164
Lastpage :
168
Abstract :
A DSP simulator of a full duplex high frequency satellite link with a generalized fade countermeasure has been presented. By feeding synthesized stochastic/dynamic rain attenuation and amplitude scintillation time-series into detailed power link budget equations, it is possible to simulate the expected carrier/noise ratio variations on either forward or return channels. Due to frequency scaling, these will in general be different even on a symmetrical VSAT network. The proposed fading simulator can mimic most known characteristics such as geographical diversity, instantaneous frequency scaling and hysteresis for rain attenuation. The communication channel simulator can match, in the long run, the expected long-term power spectral density and first order statistics as predicted from models. It is also emphasized that the use of a generalized fade countermeasure results in a very substantial improvement in user data throughput allowing operation close to channel capacity.
Keywords :
digital simulation; 20 to 50 GHz; DSP simulator; EHF; SHF; amplitude scintillation; carrier/noise ratio; communication channel simulator; fade countermeasure; first order statistics; forward or return channel; frequency scaling; geographical diversity; high frequency satellite link; hysteresis; instantaneous frequency scaling; long-term power spectral density; power link budget equations; rain attenuation; return channel; symmetrical VSAT network;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Antennas and Propagation, 1999. IEE National Conference on.
Conference_Location :
York, UK
Print_ISBN :
0-85296-713-6
Type :
conf
Filename :
788861
Link To Document :
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