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In order to support different types of multimedia applications, the IEEE 802.16 standard defines different service classes with their associated quality of service (QoS) parameters [1]. The scheduling algorithm is the crucial point in QoS provisioning over such broadband wireless access (BWA) network and it is important that the scheduling algorithm have a multi-dimensional objective of satisfying...
Based on the principle of ant colony algorithm this paper proposes a new ant colony algorithm based on trees, and applies it to the solution of multi-constraints QoS network multicast routing. An ant moves constantly on the network to find a multicast tree including source nodes and destination nodes. This action is operated repetitively and pheromones are updated regularly, and an optimal multicast...
In optical burst switching (OBS), the performance of networks is directly affected by the process of burst assembly at edge nodes. In this paper, to provide high quality of service, a novel assembly mechanism called burst composite assembly (BCA) is proposed, which combines the best of the algorithm of fixed-assembly-period (FAP) and adaptive- assembly-size (AAS). We then conduct a performance evaluation...
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