Modeling and Distributed Provisioning in 10–40–100-Gb/s Multirate Wavelength Switched Optical Networks

Sambo, N.; Secondini, Marco; Cugini, F.; Bottari, G.; Iovanna, Paola; Cavaliere, Fabio; Castoldi, P.

doi:10.1109/jlt.2011.2122245

Cited by 84 publications

(50 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…40 Gbps or 100 Gbps by a detrimental XPM impairment. Since, the XPM generated from the high-line-rate OBFs is not so harmful, and neither the XPM between the OBFs with the same line rate [15]. Therefore, in the proposed impairment-aware VON composition method, we assess the impact of impairments using the impairment model elaborated in [16], and select the transponders with suitable line rates and spectral separation in order to minimize the impact of non-linear impairments and guarantee the transmission quality and the isolation of coexisting VONs.…”

Section: (A) Multi-dimensional Optical Network Virtualizationmentioning

confidence: 99%

Optical network democratization

Nejabati¹,

Peng²,

Simeonidou³

2016

Phil. Trans. R. Soc. A.

View full text Add to dashboard Cite

General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. The current Internet infrastructure is not able to support independent evolution and innovation at physical and network layer functionalities, protocols, and services, while at same time supporting the increasing bandwidth demands of evolving and heterogeneous applications. This paper addresses this problem by proposing a completely democratized optical network infrastructure. It introduces the novel concepts of optical white box and bare metal optical switch as key technology enablers for democratizing optical networks. These are programmable optical switches that their hardware is loosely connected internally and completely separated from their control software. To alleviate their complexity, a multidimensional abstraction mechanism utilising software defined network technology is proposed. It creates a universal model of the proposed switches without exposing their technological details. It also enables a conventional network programmer to develop network applications for control of the optical network without specific technical knowledge of the physical layer. Furthermore, a novel optical network virtualization mechanism is proposed, enabling composition and operation of multiple co-existing and application specific virtual optical networks sharing the same physical infrastructure. Finally, the optical white box and the abstraction mechanism are experimentally evaluated, while the virtualization mechanism is evaluated with simulation.

show abstract

Section: (A) Multi-dimensional Optical Network Virtualizationmentioning

confidence: 99%

Optical network democratization

Nejabati¹,

Peng²,

Simeonidou³

2016

Phil. Trans. R. Soc. A.

View full text Add to dashboard Cite

show abstract

“…The total variance of the non-linear phase noise in a link i and a route l can be calculated with Eq. (9), (10) [9] [10]: (9) (10) where the parameter m j = 0, 1 indicates whether the OOK channel j is active or not, and w is the number of the wavelength channels of the link with OOK modulation.…”

Section: B Dqpskmentioning

confidence: 99%

“…Finally, the BER due to phase noise for a DQPSK connection is calculated as Eq. (13), (14) [9] [10]:…”

Section: B Dqpskmentioning

confidence: 99%

“…The challenge of developing a PI-aware for such non-linear impairment is not only the more complex calculation of the accumulated phase noise along the candidate path but also the calculation of the distortion caused to the already established lightpaths. To the knowledge of this paper's authors, with the exception of [8] and [9], there are not many proposals in the literature for XPM-aware provisioning of MLR optical networks. In [8], the authors consider a design of such a network in the static scenario only and they propose an algorithm that adapts the optical reach of 40Gbps channels whenever they co-propagate with 10Gbps ones.…”

Section: Introductionmentioning

confidence: 99%

“…However, they apply a fixed parameter to modify the length of a fibre link regardless of the number of co-existing 10Gbps channels or their spectral separation with the 40Gbps ones and thus, they do not accurately estimate the XPM impairment. In [9], the authors consider a MLR optical network where each lightpath is set up dynamically and its QoT metrics are calculated based on analytical models. They also consider the implementation of tunable transceivers that can be tuned at any data rate and the use of guard bands between xPSK and OOK channels.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dynamic physical impairment-aware routing and wavelength assignment in 10/40/100 Gbps mixed line rate optical networks

Balasis

Wang

et al. 2014

16th International Conference on Advanced Communication Technology

View full text Add to dashboard Cite

Abstract-The growing global Internet traffic will inevitably lead to a serious upgrade of the current optical networks' capacity. Instead of upgrading the data rate of each wavelength in every fibre link across the entire optical WDM network infrastructure, it is more efficient and cost-effective to support different data rates within one fibre link (e.g., 10, 40 and 100 Gbps). This is called optical network with mixed line rates (MLR). Moving to higher than 10Gbps data rates that can be used within the same fibre requires the implementation of phase modulation schemes.Nevertheless, the co-existing OOK channels cause a critical physical impairment to the phase modulated channels, namely cross-phase modulation (XPM), that limits the network's performance. In order to mitigate this type of impairment a more sophisticated physical impairment aware routing and wavelength assignment scheme needs to be adopted. In this paper, the critical impairment for each data rate and the way it affects quality of transmission (QoT) is presented. Secondly, a novel dynamic RWA algorithm for a MLR optical network is proposed in order to address this issues. Finally, our proposed method is compared through simulations with the shortest path and minimum hop routing schemes.

show abstract

Encompassing ROADM add/drop constraints in GMPLS‐based WSONs

Sambo

Cugini

Bottari

et al. 2011

Trans. Emerg. Telecomms. Techs.

Self Cite

View full text Add to dashboard Cite

Different reconfigurable optical add/drop multiplexer (ROADM) architectures can be considered for the deployment of cost-effective wavelength switched optical networks (WSONs). They impose add/drop constraints that might significantly affect the efficient utilisation of the overall WSON resources.In this paper, the most relevant ROADM architectures and related constraints are first reviewed and discussed. Then novel provisioning schemes are proposed to effectively handle different ROADM architectures and provide a preference on the utilisation of add/drop resources with limited flexibility. The schemes are specifically designed to exploit the recently introduced generalised multiprotocol label switching extensions for the advertisement of capacity and/or availability of ROADM add/drop resources. Simulation results show that the proposed schemes guarantee the effective utilisation of the add/drop ROADM resources under several WSON scenarios.

show abstract

Modeling and Distributed Provisioning in 10–40–100-Gb/s Multirate Wavelength Switched Optical Networks

Cited by 84 publications

References 27 publications

Optical network democratization

Optical network democratization

Dynamic physical impairment-aware routing and wavelength assignment in 10/40/100 Gbps mixed line rate optical networks

Encompassing ROADM add/drop constraints in GMPLS‐based WSONs

Contact Info

Product

Resources

About