Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network [Topics in Optical Communications

Jinno, Masahiko; Kozicki, Bartłomiej; Takara, H.; Watanabe, Atsushi; Sone, Yuji; Tanaka, Takafumi; Hirano, A.

doi:10.1109/mcom.2010.5534599

Cited by 770 publications

(367 citation statements)

References 8 publications

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“…It is assumed that the available bandwidth per link is 4THz, and each FS is 12.5GHz. This is a value typically considered as the available spectrum in each fiber, and corresponds to the Cband spectrum [20].…”

Section: Simulation Framework and Resultsmentioning

confidence: 99%

Optimized traffic profile for FlexGrid optical networks

Liu

Comellas

2017

Photon Netw Commun

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This work is focused on studying the connections bandwidth distribution effects on the FlexGrid network performance. An accurate study of spectrum occupancy in heavy loaded FlexGrid optical networks is carried out. This analysis is useful to figure out which traffic profiles are more suitable for this kind of networks. Two different cases are considered with respect to the offered connections. In the Elastic case, connections sizes can take any value from 1 to a maximum number of spectrum slots. In the MultiRate case, only three connections sizes are allowed. It is demonstrated that by generating the connections with some specific statistical properties, the network performance is improved. These properties are derived from the theoretical study of spectrum occupation in ideal conditions. The main contribution of this work is therefore the proposal of an Optimum traffic profile which allows to efficiently using the spectrum in FlexGrid optical networks. The gain obtained by generating the proposed traffic profile is evaluated by means of simulations at the link as well as at the whole network level.

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Section: Simulation Framework and Resultsmentioning

confidence: 99%

Optimized traffic profile for FlexGrid optical networks

Liu

Comellas

2017

Photon Netw Commun

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“…In this part of the study, besides the CG and AFA approaches, three reference methods were used. The methods are heuristics that were proposed for the pure RSA and adapted to RSA-UAM-DPP: first fit (FF) (Jinno et al, 2010), most subcarriers first (MSF) (Christodoulopoulos et al, 2011) and longest path first (LPF) (Christodoulopoulos et al, 2011). FF allocates demands one by one (according to the order in which they are saved in input data) to the first available resources.…”

Section: Comparison Of the Algorithmsmentioning

confidence: 99%

A column generation technique for routing and spectrum allocation in cloud–ready survivable elastic optical networks

Goścień

Walkowiak

2017

International Journal of Applied Mathematics and Computer Science

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Driven by increasing user requirements and expectations, the fast development of telecommunications networks brings new challenging optimization problems. One of them is routing and spectrum allocation (RSA) of three types of network flows (unicast, anycast, multicast) in elastic optical networks (EONs) implementing dedicated path protection (DPP). In the paper, we model this problem as integer linear programming (ILP) and we introduce two new optimization approaches-a dedicated heuristic algorithm and a column generation (CG)-based method. Then, relying on extensive simulations, we compare algorithm performance with reference methods and evaluate CG efficiency in detail. The results show that the proposed CG method significantly outperforms reference algorithms and achieves results very close to optimal ones (the average distance to optimal results was at most 2.1%).

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“…Thus, there is a growing need for an introduction of an efficient and scalable transport platform for links of 100 Gb/s and beyond. A recent proposal to answer this challenge is the idea of EON that utilizes the spectrum resources more efficiently compared to DWDM and provides more flexibility [75,83]. Since the operation of EON differs significantly from the currently used optical technologies, many new aspects and problems including survivability and optimization must be considered by the research community in the context of EON.…”

Section: Cloud Computing and Reliable Network Designmentioning

confidence: 99%

Future research directions in design of reliable communication systems

et al. 2015

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In this position paper on reliable networks, we discuss new trends in the design of reliable communication systems. We focus on a wide range of research directions including protection against software failures as well as failures of communication systems equipment. In particular, we outline future research trends in software failure mitigation, reliability of wireless communications, robust optimization and network design, multilevel and multirealm network resilience, multiple criteria routing approaches in multilayer networks, resilience options of the fixed IP backbone network in the interplay with the optical layer survivability, reliability of cloud computing networks, and

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Distance-adaptive spectrum resource allocation in spectrum-sliced elastic optical path network [Topics in Optical Communications

Cited by 770 publications

References 8 publications

Optimized traffic profile for FlexGrid optical networks

Optimized traffic profile for FlexGrid optical networks

A column generation technique for routing and spectrum allocation in cloud–ready survivable elastic optical networks

Future research directions in design of reliable communication systems

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