Title :
Satellite communication system performance in the presence of scintillation
Author :
An, Song H. ; Lindsey, William C.
Author_Institution :
LinCom Corp., Los Angeles, CA, USA
Abstract :
The authors demonstrate an approach to evaluating the bit-error probability performance of a satellite communication system operating in the presence of scintillation and thermal noise. The probability distribution function of the decision variable is used in an analytical simulation to predict bit-error probabilities for various channel conditions. With regard to treating the problems due to channel memory, a software simulator of the system has been developed; this simulator accounts for the coding, modulation, channel memory, noise, scintillation statistics, and the interleaver-deinterleaver system design. A tradeoff analysis is made with regard to different approaches concerning signal processing in the satellite and ground station. Soft- vs. hard-decision Viterbi decoding in a ground receiver is evaluated. Results on signal processing in the satellite as compared to that in the ground station are provided.<>
Keywords :
digital simulation; error statistics; satellite relay systems; scintillation; telecommunications computing; Viterbi decoding; bit-error probability performance; channel memory; coding; ground station; hard decision decoding; interleaver-deinterleaver system design; modulation; probability distribution function; satellite communication system; scintillation; signal processing; soft decision decoding; software simulator; thermal noise; Analytical models; Modulation coding; Predictive models; Probability distribution; Satellite communication; Satellite ground stations; Signal processing; Statistical distributions; System analysis and design; System performance;
Conference_Titel :
Military Communications Conference, 1988. MILCOM 88, Conference record. 21st Century Military Communications - What's Possible? 1988 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/MILCOM.1988.13516
