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To satisfy the multiple QoS constraints in different services, we divide a QoS routing problem into some multicast routing problem oriented the types of QoS service callings. Every multicasting routing problem is a Steiner tree problem. In this paper, we propose a dynamic QoS routing mechanism (DQ) to support multiple Steiner trees. We also propose a protocol to distinguish between the types of services...
Dynamic topologies and constrained recourses are two main characters of satellite networks. These characters require a specialized and efficient routing algorithm. In this paper, a QoS routing algorithm based on PEC multi objective optimization method is proposed to find paths that satisfy all user QoS requirements efficiently. A new routing scheme is also developed to reduce the computing load in...
Routing scheme plays a critical role in determining the performance and reliability of a satellite network. Since the resources in satellite networks are constrained, a major challenge in satellite network routing is how to find paths that satisfy all user QoS requirements in a low cost. In this paper, a multi-QoS optimization routing scheme is proposed to solve this problem in hierarchical satellite...
With the development of the space technology, the low performance of the on-board computing becomes a bottleneck of the satellite networks. To solve this problem, we proposed a new QoS routing scheme for LEO satellite networks based on ground station in this paper. This routing scheme is off-line and based on prediction. The most computing task of the routing scheme will be implemented on the ground...
Double-layered satellite networks (DLSNs) that consist of low earth orbit (LEO) and medium earth orbit (MEO) satellites are becoming increasingly important since they have higher coverage and better service than single-layered satellite networks. One of the challenges in DLSNs is the development of specialized and efficient routing algorithms. In this paper, virtual topology grouping strategy is improved,...
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