An analytlcal model of satellite communication networks to support circult-swltched voice traffic is used to define the relevant performance criteria and describe a comprehensive range of sate11ite capacity assignment schemes.The model defines the functions required to implement Fixed Assignments,Variable Destinations and Demand Assignments.Each of these schemes is considered with and without Digital Speech Interpolation.Additionally,a consideration in larger Demand Assignment systems involves the segmenting or pooling of the satellite capacity resource,by the multiple access technique,so that the network can have either Disjoint Pools or Combined Pools.Expressions for the required satellite capacity for specified traffic and performance are derived and some numerical results are presented.These results provide the network designer the capability to perform the trade-offs between efficiency improvements and the complexity of assignment schemes.
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