M. Ruggieri et al., TRAFFIC MODELING OF INTEGRATED TERRESTRIAL-SATELLITE SYSTEMS FOR MOBILE COMMUNICATIONS, Space communications, 13(3), 1995, pp. 239-247
In future mobile networks, the integration of terrestrial and satellit
e systems is expected to play a key role in the provision of an optimu
m mobility degree to the user through the deployment of seamless cover
ages. In this frame, the design of the space resources able to carry t
raffic overflow from the terrestrial cellular system represents an imp
ortant aspect for the effectiveness of the integration approach. Howev
er, this point still remains an open problem. The present paper, hence
, proposes a traffic model of the mobile integrated system, which allo
ws for an estimation of the number of satellite circuits able to suppo
rt the terrestrial cellular component. Traffic overflow from terrestri
al to satellite cells is also modeled, assuming an unprioritized handl
ing of handover requests. The performed modeling has been based on a s
imple and non time-consuming analytical approach, which can be effecti
vely oriented to the design of the integrated system. The major result
s that have been achieved are presented and commented in the paper.