Bandwidth-delay constrained routing algorithms
Computer Networks: The International Journal of Computer and Telecommunications Networking
A router model for QoS-based multimedia Web services
ICME '03 Proceedings of the 2003 International Conference on Multimedia and Expo - Volume 2
Analysis of Topology Aggregation techniques for QoS routing
ACM Computing Surveys (CSUR)
Large-scale service overlay networking with distance-based clustering
Proceedings of the ACM/IFIP/USENIX 2003 International Conference on Middleware
A control architecture for quality of service and resource allocation in multiservice IP networks
Art-QoS'03 Proceedings of the 2003 international conference on Architectures for quality of service in the internet
Optimal PNNI complex node representations for restrictive costs
Computer Communications
Towards an optimized abstracted topology design in cloud environment
Future Generation Computer Systems
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Large networks are often structured hierarchically by grouping nodes into different domains in order to deal with the scaling problem. In such networks, it is infeasible to maintain the detailed network information at every router. Therefore, the topology information of the domains are summarized before being broadcast. This process is called topology aggregation. Hierarchical routing protocols are then used to find a route among the domains. We study several basic problems associated with hierarchical QoS routing, including (1) how to make QoS-aware topology aggregation, (2) how to represent the aggregated network state, and (3) how to find an end-to-end route based on aggregated information. The novelty in this research is our new network QoS representation which is line segments on the delay-bandwidth plane. We also present a distributed routing mechanism that works with our representation. Our theoretical and simulation results show that the protocol achieves scalability and improved routing performance.