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The hierarchical routing and wavelength assignment problem in Automatic Switched Optical Network (ASON) is researched. Based on our analysis, three adaptive algorithms called MLLR (Multi-Layer Least Loaded Routing Algorithm), WMLCR (Wavelength-graph-based Multi-Layer Least Congestion Routing Algorithm) and BMR (Backtracking-based Multi-Layer Routing Algorithm) are proposed. A platform named AHORSP...
Oblivious routing can be implemented on simple router hardware, but network performance suffers when routes become congested. Adaptive routing attempts to avoid hot spots by re-routing flows, but requires more complex hardware to determine and configure new routing paths. We propose onchip bandwidth-adaptive networks to mitigate the performance problems of oblivious routing and the complexity issues...
In an effort to drive down the cost of ownership of interconnection networks for data centers and high-performance computing systems, technologies enabling consolidation of existing networking infrastructure, which often comprises multiple, incompatible networks operating in parallel, are feverishly being developed. Such consolidation carries the promises of lower complexity, less maintenance overhead,...
In this work, we consider the performance benefits of distribution reservation control schemes in partially-connected wavelength-routed all-optical WDM networks. In particular, we propose a new distributed reservation control scheme designed to work for general topology wavelength-routed WDM networks. In this new scheme, capacity reservation is invoked by always using the first shortest path if the...
A significant drive to consolidate data center networks on a single infrastructure is taking place. 10-Gigabit Ethernet is one of the contenders to fulfill the role of universal data center interconnect. One of the key features missing from conventional Ethernet is congestion management; this void is being filled by the standardization work of the IEEE 802.1Qau working group. However, the schemes...
The increasing demand of parallel applications in cluster computing requires the use of interconnection networks to provide low and bounded communication delays. However, message congestion appears when communication load between nodes is not fairly distributed over the network. Congestion spreading increases latency and reduces network throughput causing important performance degradation. In this...
The paper describes a novel method to introduce new concepts in functional and conceptual dimensions of routing algorithms in swarm-based communication networks.The method uses a fuzzy reinforcement factor in the learning phase of the system and a dynamic traffic monitor to analyze and control the changing network conditions.The combination of the mentioned approaches not only improves the routing...
As computing goes to system-on-chip era, on-chip network becomes an essential infrastructure for on-chip modules (cores) communication. 2D-Mesh is the most common on-chip network topology providing high throughput point-to-point communication due to its simplicity and regularity. A well-designed 2D-Mesh wormhole router should be deadlock free while supporting multicast and adaptive routing. Unfortunately,...
The goal of this work is to design a new adaptive routing technique for ad hoc wireless networks. This paper proposed the basic deign of the algorithm that works based on the principle of ant colony optimization (ACO). This is a probabilistic adaptive technique that changes its routes with the change of network topology over the period of time by learning its environment. It identifies appropriate...
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