Title :
An optimized routing scheme and a channel reservation strategy for a low Earth orbit satellite system
Author :
Tam, Peter T S ; Lui, John C S ; Chan, H.W. ; Sze, Cliff C N ; Sze, C.N.
Author_Institution :
Dept. of Comput. Sci. & Eng, City Univ. of Hong Kong, Hong Kong
Abstract :
Routing in low-Earth-orbit (LEO) satellite systems involves the choice of intersatellite links (ISL) that connect two home satellites of the mobile terminals. We use a mesh model to formulate the LEO system and proposed a mesh-based routing scheme in order to reduce the new call blocking probability and the forced termination probability. Also, due to the dynamic topology of the LEO system, the route is subject to disconnection because of a route breaking event, such as a connection handover event or a link handover event. We propose a channel reservation strategy in order to safeguard the continuity of a route. The objective is to reduce the forced termination rate. Simulation is carried out to show the effectiveness of the routing scheme and the reservation strategy
Keywords :
channel allocation; mobile satellite communication; network topology; optimisation; probability; satellite links; telecommunication congestion control; telecommunication network routing; ISL; LEO satellite systems; call blocking probability; channel reservation strategy; connection handover event; dynamic topology; forced termination probability; intersatellite links; link handover event; low-Earth-orbit satellite systems; mesh model; mobile terminals; optimized routing; route breaking event; route continuity; simulation; Artificial satellites; Computer science; Data communication; Earthquakes; Low earth orbit satellites; Mobile computing; Power system reliability; Routing; Throughput; Topology;
Conference_Titel :
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-5435-4
DOI :
10.1109/VETECF.1999.800311
