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Routing is a critical problem in networking technology. The basic problem of QoS routing is to satisfy some network parameters constrained of many conditions which is not only a NP-complete problem but also QoS parameters are nondeterministic even fuzzy. Some practical heuristic algorithms are researched to solve such a problem. Based on Partheno-GA with Binary Coding, the network model and mathematical...
In this paper, the technology of trusted boundary based on port trust value is discussed. When IP phones are connected to the existing switch-based campus area network, PC is connected to the access port of IP phone. To avoid IP phone is disconnected from the network and PC is directly into the switch port, trusted boundary based on port trust value is applied. In an IP PBX, trusted mode or untrusted...
Thread pooling is an important technique of performance optimization in middleware. With the consideration of the features of Internet applications, the configuration of thread pool in middleware needs to be adjusted dynamically on the basis of perceiving the run-time context. However, how to find out effective influencing factors which make the adjustment to have better adaptability remains to be...
To meet the requirements of Wireless Sensor Networks (WSNs), a QoS guarantee mechanism based on service-oriented middleware is presented. Focus on the problem of quality of service (QoS) evaluation, a QoS evaluation algorithm based on a model of multi-dimension cloud is proposed. It evaluates quantitatively the tasks, which can make the network be scheduled properly by middleware according to the...
Video-on-demand service in wireless networks is one important step to achieving the goal of providing video services anywhere anytime. Typically, carrier mobile networks are used to deliver videos wirelessly. Since every video stream comes from the base station, regardless of what bandwidth sharing techniques are being utilized, the media stream system is still limited by the network capacity of the...
Routing has been a key issue in networking technology. The basic problem of QoS routing is to optimize some network parameters constrained of many conditions. Based on Partheno-GA with binary coding, the network model and mathematic model of QoS routing are built, and the distributed QoS routing algorithm DQP-GA is put forward. The algorithm can be easily implemented through dividing the giant and...
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