エンドエンドQoSを考慮した複数の経路表を用いるルーティング方式の提案と評価

概要

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The demand for VoIP communication is increasing. QoS-aware routing schemes are important for real-time applications such as VoIP communication. The authors proposed a delay-aware routing scheme with use of multiple routing tables to reduce the end-to-end delay of real-time communication. In this scheme, link usage is low and specific nodes are unevenly loaded. In this paper, a new scheme is proposed. It first establishes minimum spanning trees for real-time and non real-time communications. Then the maximum node degree is specified to avoid excessive traffic loads in specific nodes. The unused links are assigned to real-time and non real-time links alternately according to the cost order. Simulation results show that the number of unused links is reduced and each node degree is balanced.
2009-10-30