routing and wavelength assignment algorithms
A Test-Bed for Comparing Impairment Aware Routing & Wavelength Assignment Algorithms in WDM Networks
... the routing will be fixed, as an output port of a de-multiplexer will always direct an optical signal to a fixed input port of the ...the routing is fixed, the routing decisions made by the algorithm ...
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Attack-aware routing and wavelength assignment for dynamic traffic in WDM networks
... on wavelength assignment, the authors used fixed shortest path ...different wavelength. They used the Best Fit P-CAR Wavelength Assignment algorithm that takes lightpaths in random ...
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Off-line Survivable Impairment-aware Routing and Wavelength Assignment
... impairment-aware routing and wavelength assignment problem and provide algorithms for solving ...same wavelength in all of its ...
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IMPAIRMENT AWARE DYNAMIC ROUTING AND WAVELENGTH ASSIGNMENT IN WDM NETWORKS
... constraint-based routing (CBR) algorithm [21], which uses the present channel load to properly model the inter-channel effects, guarantee connections and give the minimum signal quality when new connection is ...
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ANT PATH OF TOPOLOGY FOR DYNAMIC ROUTING AND WAVELENGTH ASSIGNMENT IN WDM NETWORKS
... Shortest Routing and Least-loaded Routing, and the wavelength assignment strategies are First Fit, Least Influence, ...of routing and wavelength assignment being an ...
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Attack-Aware Routing and Wavelength Assignment of Scheduled Lightpath Demands
... the routing sub-problem with the objective to minimize the crosstalk attack radius and in-band attack radius in scheduled optical ...localization algorithms be faster since they only need to search fewer ...
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Soft Computing Approaches to Routing and Wavelength Assignment in Wavelength-Routed Optical Networks
... Genetic algorithms are used for SLE in [45] and ...single wavelength links between nodes resulting in a total of L × W links in the ...of wavelength converters from 0 to 1 yielded more improvement in ...
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Impairment-Aware Dynamic Routing and Wavelength Assignment in Translucent Optical WDM Networks
... the Routing with Regenerators Problem (RRP) [12] phase, which is carried out only when the network is in ...resources, algorithms for RRP attempt to minimize the number of regenerators used in the ...
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A Genetic Algorithm for Maximum Edge-disjoint Paths Problem and Its Extension to Routing and Wavelength Assignment Problem.
... approximation algorithms and exploring more tractable ...the routing for each request in a chain is uniquely determined by its endpoint (this fact also holds for arbitrary ...
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Analysis of Routing and Wavelength Assignment in Large WDM Networks
... of algorithms to solve RWA problem for small WDM Networks, but there has not been much work done on the analysis of RWA algorithms in large WDM networks such as, 100, 200, 300 and 400 node ...proposed ...
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A Novel Protection Guaranteed, Quality of Transmission Aware Routing and Wavelength Assignment Algorithm for All-optical Networks
... In this work, the problem of dedicated path protection has been addressed in a new perspective along with physical layer impairments consideration. A new, novel RWA algorithm called “V-Lit EHQ” for all- optical networks ...
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Adaptive routing and wavelength assignment in all-optical networks
... the wavelength continuity constraint, the least congested route, defined to be the one that has the most available path wavelengths (available on all links of the path), will be ...four algorithms can be ...
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A Framework for and Empirical Study of Algorithms for Traffic Assignment
... These algorithms apply a more complicated structure than FW, however, they use FW as a special ...points. Algorithms of this type usually have two main routines: generating new extreme points and optimising ...
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Randomized Approximation and Online Algorithms for Assignment Problems
... Combinatorial optimization is a branch of mathematics that deals with the question how to determine a best possible solution among a given finite set of alternatives. One of the fundamental problems in this field is the ...
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Computing Call Blocking Probabilities in Wavelength Routing Networks
... optical wavelength routing networks with static (xed or alternate) routing, random wavelength allocation policy has been studied in [4, 2, 18, 3, 12, 28, 15, 20, ...alternate routing ...
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On Routing and Wavelength Assignment in WDM Networks.
... symmetric routing offers many advantages, including better network capacity planning and utilization, faster problem resolution, and more consistent traffic flow characteristics in terms of delay, cost, and other ...
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Methods and problems of wavelength routing in all optical networks
... in wavelength-routing in all- optical ...on-line routing in all-optical ...probabilistic algorithms for on-line routing in all-optical networks (see ...the routing model where ...
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On Routing and Spectrum Assignment in Elastic Optical Networks
... and routing of a demand. Consequently, routing and spectrum assignment (RSA) [17, 18] has emerged as the essential problem for spectrum management in ...
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Wavelength assignment in quantum access networks with hybrid wireless-fiber links
... our wavelength assign- ment technique, here, we consider two parameters that directly affect the amount of background noise: launch power of data channels, I , and the number of users, ...
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Best-Fit Wavelength Assignment Algorithm For Persistent Communication in Optical Networks
... a wavelength for each of the route set, it is necessary to establish an optical path between the source and the ...of routing and assigning wavelength (RWA) ...problems; routing and ...
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