Title :
Cochannel interference of a satellite spread spectrum system in a multiuser environment
Author_Institution :
Selenia Spazio SpA, Rome, Italy
Abstract :
The performance of a code-division multiple access (CDMA) system is discussed. This work is pertinent to a satellite system architecture proposed for the future data relay satellite (DRS) of the European Space Agency (ESA). The limitations of this type of access are due to interference from other users. These limitations are magnified by variations in signal strength at the demodulator input. A quantitative evaluation of the differences in signal power is carried out. It is demonstrated that the use of CDMA in the proposed scenario implies restrictive operating conditions or a low link availability
Keywords :
code division multiple access; radiofrequency interference; satellite relay systems; spread spectrum communication; CDMA; DRS; ESA; European Space Agency; code-division multiple access; data relay satellite; demodulator; interference; multiuser environment; satellite spread spectrum system; Demodulation; Frequency conversion; Frequency division multiaccess; Interchannel interference; Multiaccess communication; Phased arrays; Relays; Satellite ground stations; Spread spectrum communication; Spread spectrum radar;
Conference_Titel :
Electrotechnics, 1988. Conference Proceedings on Area Communication, EUROCON 88., 8th European Conference on
Conference_Location :
Stockholm
DOI :
10.1109/EURCON.1988.11154
