This paper describes an ATM-based satellite network, focusing on the n
etworking (ATM) aspects of the design. The ATM requirements and the ba
sic design of the network are outlined. In particular, a simple MAC la
yer is proposed in which ATM service classes are mapped onto MF-TDMA u
plink access methods. The uplink access and resource allocation approa
ches based on this model are described in detail. Also, this paper sho
ws how different qualities-of-service can be provided by using a combi
nation of different access schemes. This paper also covers scheduling
for the uplink portion of the satellite network. The use of Hierarchic
al Round Robin is argued on the grounds of performance, flexibility an
d implementability.