A multiple access technique for centralized multiple satellite networking with on-board processing in the central node

A multiple-access method suitable for a centralized multiple satellite network, with onboard processing in the central node, is defined. This multiple-access method (CDMA/Aloha/BFN) is a combination of code-division multiple-access (CDMA), random multiple access (RMA) or Aloha, and a set of electronic beam-forming networks (BFN). The CDMA/Aloha/BFN multiple-access method maintains the advantages of CDMA and RMA techniques and avoids the disadvantages by using some processing onboard the central satellite stations. The major characteristics of this multiple-access method are: no need for network synchronization, resistance to jamming, efficient utilization of the available system power and bandwidth, low equipment complexity, low mutual interference, ability to operate in systems supporting highly dynamic users, and good delay-throughput performance. The theory of operation of the CDMA/Aloha/BFN multiple-access technique is described, and its performance is analyzed