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The routing based on load balancing and shortest path routing (LB-SPR) was recently introduced, and it was shown to have advantages over the standard shortest path routing (SPR) algorithms: it can support higher guaranteed traffic loads, and it simplifies the resource reservation processes. In this paper, the cost of setting up the reliable network which is resilient to node or link failures is analyzed...
Two multi-layer network backup capacity recovery mechanisms, which are static and dynamic mechanisms, have been proposed to realize survivability strategy in IP over WDM multi-layer network. Compared with the static one, the dynamic backup capacity mechanism is adopted as its flexibility which is more suitable for the development in the current network. To achieve better performance of resource utilization,...
Implementing the dynamic couple of searching paths and resource allocation becomes increasingly important in the research of Quality of Service (QoS) routing. In this paper, we formulate the problem of dynamic QoS routing with resource allocation based on Worst-case Fair Weighted Fair Queuing (WF2Q) packet scheduling style. We propose an algorithm using the proved results - the optimal path resource...
Single type of protection for dynamic traffic on WDM network is well-studied, and most protection allocation mechanisms are based on the centralized control. In this paper, we will investigate the mixed-mode protection strategy for the connections in the network, under the assumption of single link failure model. Two types of protection resource allocation methods are proposed. The distributed decision...
In this paper, we attempt to elongate the network lifetime by balancing energy usage, namely, allocating packets via multiple paths proportionally to the energy metric of each path. We propose the static and dynamic strategies of collecting energy metric values and allocating packets, and apply them to AOMDV. Performance comparisons of the proposed methods and original AOMDV are carried out in simulation...
Traffic grooming techniques in optical networks are attracting increasing research attention in order to handle the huge bandwidth mismatch between high capacity lightpaths and low-rate individual traffic requests. It is important to have guaranteed survivability of all user connections in such networks. Path protection has emerged as a widely accepted technique for survivable WDM network design....
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