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Quality of service routing has recently been improved by using localized routing rather than global state information. The traditional global method is associated with many problems which are avoided by using the Localized Quality of Service (QoS) routing, where the source nodes using statistics which is collected locally. Three new localized routing algorithms called Highest Minimum Bandwidth routing...
The biggest contemporary drawback in the maintenance and distribution of the global state is the increase in communication overheads. Localized routing is the method to avoid this problem. New localized routing algorithms called Highest Minimum Bandwidth routing (HMB) is introduced in this paper. The new algorithm is compared under different traffic loads and network topologies to the existing localized...
Localized Quality of Service (QoS) routing is a viable alternative to the QoS routing algorithms that use global network state information to make routing decisions. In localized QoS routing algorithms each source maintains a predetermined set of candidate paths for each destination and avoids the problems associated with the maintenance of global network state by using locally collected flow statistics...
Quality of service (QoS) routing has been proposed for supporting the requirements of network applications and satisfying connection constraints. A large amount of information needs to be exchanged periodically among routers. Therefore, in order to satisfy such requirements localized QoS routing algorithms have been proposed. This is where source nodes make routing decisions based on statistics collected...
Quality of service (QoS) routing has been proposed for supporting the requirements of network applications and satisfying connection constraints. A large amount of information needs to be exchanged periodically among routers. Therefore, in order to satisfy such requirements localized QoS routing algorithms have been proposed. This is where source nodes make routing decisions based on statistics collected...
The main goals of quality-of-service (QoS) routing algorithms are: (1) to try to accommodate new connections which expect certain end-to-end QoS requirements and (2) to improve the overall network efficiency. These QoS requirements are in the form of delay, jitter, packet-loss and bandwidth. In order to accommodate every new connection through the network that satisfies the QoS, the resources must...
In today's Internet with its multiple services, there is a growing need to provide quality of service (QoS) guarantees tailored to specific services rather than the best-effort QoS that is currently provided. One of the most important mechanisms for providing QoS guarantees is QoS routing. However, the main drawback to the use of QoS routing algorithms is their inability to scale well to large networks...
When the traffic demand changes in single-hop WDM broadcast and select networks, the load can become unbalanced. This situation leads to poor resource utilisation and the wavelength assignment (WLA) requires reconfiguring to maintain a balanced load. The problem of reconfiguring the wavelength assignment in single-hop WDM networks is considered here. Topologies used in the study are passive star and...
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