Asynchronous DS-CDMA system for VSAT satellite communication networks

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