Experimental Demonstration of Impairment-Aware PCE for Multi-Bit-Rate WSONs

Paolucci, F.; Sambo, N.; Cugini, F.; Giorgetti, A.; Castoldi, P.

doi:10.1364/jocn.3.000610

Cited by 23 publications

(9 citation statements)

References 26 publications

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“…Domain active stateful child PCE, developed in C++ in a Linux box, performs intra-domain topology export advertisement by means of BGP-LS, impairment-aware path computation [11], multi-action re-optimization, adaptation and instantiation by means of PCEP [12] [13].…”

Section: B Multi-vendor Flexi-grid Domainmentioning

confidence: 99%

Experimental Demonstration of Multivendor and Multidomain EON With Data and Control Interoperability Over a Pan-European Test Bed

Dios

Casellas

Paolucci

et al. 2016

J. Lightwave Technol.

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Section: B Multi-vendor Flexi-grid Domainmentioning

confidence: 99%

Experimental Demonstration of Multivendor and Multidomain EON With Data and Control Interoperability Over a Pan-European Test Bed

Dios

Casellas

Paolucci

et al. 2016

J. Lightwave Technol.

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“…Works in [53]- [56] are focused on IV&RWA PCE for higher rates or multi bit-rate scenarios (e.g., 40 and 100 Gb/s). In [57], a study and a comparison on several QoTaware PCE architectures are carried out. In particular, authors show that IV-candidate+RWA architecture may experience a larger delay than IV&RWA because of the communication between IV PCE and RWA PCE.…”

Section: E Pce and Physical Impairments In Wsonsmentioning

confidence: 99%

A Survey on the Path Computation Element (PCE) Architecture

Paolucci

Cugini

Giorgetti

et al. 2013

IEEE Commun. Surv. Tutorials

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112

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Quality of Service-enabled applications and services rely on Traffic Engineering-based (TE) Label Switched Paths (LSP) established in core networks and controlled by the GMPLS control plane. Path computation process is crucial to achieve the desired TE objective. Its actual effectiveness depends on a number of factors. Mechanisms utilized to update topology and TE information, as well as the latency between path computation and resource reservation, which is typically distributed, may affect path computation efficiency. Moreover, TE visibility is limited in many network scenarios, such as multi-layer, multidomain and multi-carrier networks, and it may negatively impact resource utilization. The Internet Engineering Task Force (IETF) has promoted the Path Computation Element (PCE) architecture, proposing a dedicated network entity devoted to path computation process. The PCE represents a flexible instrument to overcome visibility and distributed provisioning inefficiencies. Communications between path computation clients (PCC) and PCEs, realized through the PCE Protocol (PCEP), also enable inter-PCE communications offering an attractive way to perform TE-based path computation among cooperating PCEs in multi-layer/domain scenarios, while preserving scalability and confidentiality. This survey presents the state-of-the-art on the PCE architecture for GMPLS-controlled networks carried out by research and standardization community. In this work, packet (i.e., MPLS-TE and MPLS-TP) and wavelength/spectrum (i.e., WSON and SSON) switching capabilities are the considered technological platforms, in which the PCE is shown to achieve a number of evident benefits.

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“…In addition, novel dynamic lightpath provisioning in several MLR scenarios is investigated. The problem of IA-RWA in MLR Wavelength-Switched Optical Networks (WSONs) with two Path Computation Element (PCE) architectures is addressed in [11], and a novel PCE protocol extension is introduced. However, these two papers consider transparent First IEEE International Conference on Communications in China: Optical Networks and Systems (ONS) 978-1-4673-2815-9/12/$31.00 ©2012 IEEE networks without regenerators.…”

Section: A Related Workmentioning

confidence: 99%

QoT-aware grooming, routing, and wavelength assignment (GRWA) for Mixed-Line-Rate translucent optical networks

Zhao

Subramaniam

Brandt-Pearce

et al. 2012

2012 1st IEEE International Conference on Communications in China (ICCC)

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A Mixed Line Rate optical network is a good candidate for a core backbone network because of its ability to provide diverse line rates to effectively accommodate traffic demands with heterogeneous bandwidth requirements. Optical amplification has increased the reach of long-haul optical links. Nevertheless, it is impossible today to construct a truly optical network without converting optical signals to electrical signals and regenerating them, because of the deleterious effects of physical impairments. Thus there is a maximum transmission reach for optical signals before they have to be regenerated. Being expensive devices, regenerators are expected to be sparsely located and used in such a network, called a translucent optical network. In this paper, we consider the grooming, routing, and wavelength assignment (GRWA) problem so that the Quality of Transmission (QoT) for connections is satisfied, and the network-level performance metric of blocking probability is minimized. Cross-layer heuristics to effectively allocate the sparse regenerators are developed, and extensive simulation results are presented to demonstrate their effectiveness.

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Experimental Demonstration of Impairment-Aware PCE for Multi-Bit-Rate WSONs

Cited by 23 publications

References 26 publications

Experimental Demonstration of Multivendor and Multidomain EON With Data and Control Interoperability Over a Pan-European Test Bed

Experimental Demonstration of Multivendor and Multidomain EON With Data and Control Interoperability Over a Pan-European Test Bed

A Survey on the Path Computation Element (PCE) Architecture

QoT-aware grooming, routing, and wavelength assignment (GRWA) for Mixed-Line-Rate translucent optical networks

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