Abstract
Link disruption has a considerable impact on routing in multilayered satellite networks, which includes predictable disruption from the periodic satellite motion and unpredictable disruption from communication faults. Based on the analysis on the predictability of satellite links, a link disruption routing strategy is proposed for multilayered satellite networks, where, a topology period is divided into non-uniform slots, and a routing table in each slot is calculated by the topology predictability of satellite networks, and a congestion control mechanism is proposed to ensure the reliable transmission of packets, and a flooding mechanism is given to deal with the routes selection in the case of unpredictable link disruption. This routing strategy is implemented on the satellite network simulation platform, the simulation results show that the strategy has less delay and higher link utilization, and can meet the routing requirements of multilayered satellite networks.
Highlights
The main components of satellite networks consist of the space segment: satellites, and the ground segment: earth stations
Based on the analysis on the predictability of satellite links, a link disruption routing strategy is proposed for multilayered satellite networks, where a topology period is divided into non-uniform slots, and a routing table in each slot is calculated by the topology predictability of satellite networks, and a congestion control mechanism is proposed to ensure the reliable transmission of packets, and a flooding mechanism is given to deal with the routes selection in the case of unpredictable link disruption
This routing strategy is implemented on a satellite network simulation platform, the simulation results show that the strategy has lower delay and higher link utilization, and can meet the routing requirements of multilayered satellite networks
Summary
The main components of satellite networks consist of the space segment: satellites, and the ground segment: earth stations. In DTRS routing strategy, route tables are calculated by considering the periodical topology of satellite networks caused by the regular motion of satellite and stored in satellites, a dynamical congestion control mechanism and a flooding-based mechanism are proposed to be tolerant links disruption. This routing strategy is implemented in the satellite network simulation platform [10], and the simulation results show that this strategy has lower computation overhead and better performance for links disruption tolerance
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