Title :
Modeling multiple access to a hard limiting direct-sequence spread spectrum satellite repeater using phasor analysis
Author :
Ehrlich, Michael R. ; Liebetreu, John M.
Author_Institution :
Betac Corp., Colorado Springs, CO, USA
Abstract :
A model of direct-sequence spread-spectrum carriers accessing a limiting satellite repeater in the presence of strong interference (tone jamming, other users, and Gaussian noise) is presented. A simplified phasor analysis is used to obtain a strict upper bound on system bit error rate. Comparisons are made of the bit error rate for a limiting repeater system and that obtained for a linear repeater system. For a quadriphase spreading code, the upper bound on the average degradation due to the limiting repeater was approximately 4 dB for an error probability of 10/sup -4/.<>
Keywords :
codes; multi-access systems; radiofrequency interference; repeaters; satellite relay systems; spread spectrum communication; Gaussian noise; average degradation; direct-sequence spread-spectrum carriers; error probability; hand limiting repeater system; interference; linear repeater system; modelling; multiple access; phasor analysis; quadriphase spreading code; satellite repeater; system bit error rate; tone jamming; upper bound; Bit error rate; Degradation; Error probability; Gaussian noise; Interference; Jamming; Repeaters; Satellites; Spread spectrum communication; Upper bound;
Conference_Titel :
IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'
Conference_Location :
Colorado Springs, CO, USA
DOI :
10.1109/REG5.1988.15926
