Waveband grooming and IP aggregation in optical networks

Parthiban, Rajendran; Tucker, R.S.; Leckie, Christopher

doi:10.1109/jlt.2003.819136

Cited by 56 publications

(15 citation statements)

References 25 publications

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“…Typically, a MG-OXC is formed by a switching fabric, which commutes traffic in fiber (FXC), wavelength (WXC), and waveband (BXC), as well as by optical multiplexers and demultiplexers at the BXC and WXC layers, which allow add and drop operations at specific wavebands and/or wavelengths. The features of several MG-OXC architectures as well the optimal solutions of the waveband switching (WBS) problem have been discussed in several papers [2][3][4][5][6][7][8][9]. Aspects of interest include the minimization of the number of used ports and the proposition of efficient algorithms for routing and waveband/wavelength assignment.…”

Section: Introductionmentioning

confidence: 99%

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Performance analysis of an optical network employing waveband and traffic grooming

et al. 2011

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This paper analyses an optical network architecture composed by an arrangement of nodes equipped with multi-granular optical cross-connects (MG-OXCs) in addition to the usual optical cross-connects (OXCs). Then, selected network nodes can perform both waveband as well as traffic grooming operations and our goal is to assess the improvement on network performance brought by these additional capabilities. Specifically, the influence of the MG-OXC multi-granularity on the blocking probability is evaluated for 16 classes of service over a network based on the NSFNet topology. A mechanism of fairness in bandwidth capacity is also added to the connection admission control to manage the blocking probabilities of all kind of bandwidth requirements. Comprehensive computational simulation are carried out to compare eight distinct node architectures, showing that an adequate combination of waveband and single-wavelength ports of the MG-OXCs and OXCs allow a more efficient operation of a WDM optical network carrying multi-rate traffic.

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Section: Introductionmentioning

confidence: 99%

“…Traffic grooming can be carried out at several levels, from packets into time-division multiplexed (TDM) frames, TDM frames into wavelength, wavelengths into waveband and, wavebands into a fiber [2]. In our paper, traffic grooming means multiplexing and switching a lower bit-rate traffic streams into wavelengths.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of an optical network employing waveband and traffic grooming

et al. 2011

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“…Since networks have to process heterogeneous bandwidth demands, some techniques of traffic grooming have been utilized to multiplex lower-rate traffic streams onto wavelengths. These techniques have been widely investigated including several network multilayer architectures [9][10][11][12][13]. Their efficiency depends on the chosen strategy, combining algorithm and node architecture.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous effect of connection admission control in distance and bandwidth capacity on WDM network performance

Lima

Cesar

2007

Photon Netw Commun

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This article presents an algorithm for dynamicrouting and wavelength assignment (D-RWA) in an optical WDM network. The approach is based on a genetic algorithm (GA) and it includes a connection admission control (CAC), to provide a network with simultaneous fairness in distance and bandwidth capacity. The algorithm is evaluated by means of computer simulations using a mesh network with two types of node architectures capable of performing traffic grooming. Combining the two types of nodes, the performance of four network configurations is compared. Assuming that one of the two node types is more costly, two sparse node allocations are suggested to maintain the network cost-effective. The algorithm assigns wavelengths to the ligthpaths, routes the traffic streams, manages the grooming of sub-wavelength tributaries onto full wavelength channels, provides fairness, and minimizes the overall blocking probability of connection requests. Numerical results attest the usefulness of the proposed approach considering several scenarios of distance and bandwidth capacity classes of requests. Simultaneous and isolated simulations of the two fairness schemes are also compared, emphasizing the versatility of the algorithm.

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“…The broad category of ASONs includes a wide variety of circuit-switched architectures [10], [11]. The basic ASON architecture has Optical Cross-Connects (OXCs) interconnected by WDM links.…”

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confidence: 99%

Effect of Lightpath Bit-rate on the Dimensioning of Automatically Switched Optical Networks

Parthiban

2006

First International Conference on Industrial and Information Systems

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We analyze the economic viability of 40 Gb/s deployment for an Automatically Switched Optical Network (ASON). We design and analyze a national network delivering a high bandwidth access to every user, and investigate the capital cost of a waveband groomed ASON for 10 Gb/s and 40 Gb/s. Based on this analysis, we show that the 40 Gb/s system is more cost-effective and scalable than the 10 Gb/s system.

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Waveband grooming and IP aggregation in optical networks

Cited by 56 publications

References 25 publications

Performance analysis of an optical network employing waveband and traffic grooming

Performance analysis of an optical network employing waveband and traffic grooming

Simultaneous effect of connection admission control in distance and bandwidth capacity on WDM network performance

Effect of Lightpath Bit-rate on the Dimensioning of Automatically Switched Optical Networks

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