Title :
Asynchronous DS-CDMA system for VSAT satellite communication networks
Author_Institution :
GTE Spacenet Corp., McLean, VA, USA
Abstract :
A direct-sequence code-division multiple-access (DS-CDMA) system was assessed from the technical feasibility standpoint for use with wide C-band transponders in standard 56-kb/s point-to-point communications. The basic concept of the DS-CDMA system discussed and the performances of DS-CDMA systems (asynchronous and synchronous) are explored. Extensive link analysis and system tradeoffs reveals that DS-CDMA could produce a good throughput result. A recommendation for an optimum system is provided, and the tradeoff between standard SCPC and DS-CDMA is addressed briefly. It is believed that a DS-CDMA system is a promising alternative to TDMA or FDMA for use with small economic Earth stations
Keywords :
computer networks; data communication systems; multi-access systems; performance evaluation; protocols; satellite links; spread spectrum communication; 56 kbit/s; SCPC; VSAT satellite communication networks; asynchronous DS-CDMA system; direct-sequence code-division multiple-access; link analysis; performance; system tradeoffs; throughput; wide C-band transponders; Bandwidth; Communication standards; Costs; Frequency division multiaccess; Interference; Multiaccess communication; Satellite broadcasting; Satellite communication; Spread spectrum communication; Time division multiple access;
Conference_Titel :
Computers and Communications, 1988. Conference Proceedings., Seventh Annual International Phoenix Conference on
Conference_Location :
Scottsdale, AZ
Print_ISBN :
0-8186-0830-7
DOI :
10.1109/PCCC.1988.10058
