Impact of transmission performance on path routing in all-optical transport networks

Sabella, R.; Iannone, E.; Listanti, Marco; Berdusco, M.; Binetti, S.

doi:10.1109/50.730357

Cited by 51 publications

(30 citation statements)

References 19 publications

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“…A very detailed comparison of these three methods on Italian and Belgian networks with coherent wavelength converters in OXCs under PLIs is presented in [22] with a traffic matrix as input. In this study, only ASE and in-band crosstalk are considered with the assumption that there are no non-linear effects.…”

Section: Pli-aware Static Network Design and Routingmentioning

confidence: 99%

“…The lightpath is established if the Q-factor of the lightpath is above the required threshold. Yet some other studies have considered the impairments during the network design phase [20][21][22][23][24]29]. In [29], CD and filter concatenation effects are considered apart from PMD, ASE, and CT and an ILP formulation is developed based on the three-step procedure in [28] for design of metro area networks.…”

Section: Pli-aware Dynamic Routing: Single-domainmentioning

confidence: 99%

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Physical layer impairment aware routing (PLIAR) in WDM optical networks: issues and challenges

Saradhi

Subramaniam

2009

IEEE Commun. Surv. Tutorials

147

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Abstract-In WDM optical networks, the physical layer impairments (PLIs) and their significance depend on network type-opaque, translucent, or transparent; the reach-access, metro, or core/long-haul; the number and type of network elements-fiber, wavelengths, amplifiers, switching elements, etc.; and the type of applications-real-time, non-real time, missioncritical, etc. In transparent optical networks, PLIs incurred by non-ideal optical transmission media accumulate along an optical path, and the overall effect determines the feasibility of the lightpaths. If the received signal quality is not within the receiver sensitivity threshold, the receiver may not be able to correctly detect the optical signal and this may result in high bit-error rates. Hence, it is important to understand various PLIs and their effect on optical feasibility, analytical models, and monitoring and mitigation techniques. Introducing optical transparency in the physical layer on one hand leads to a dynamic, flexible optical layer with the possibility of adding intelligence such as optical performance monitoring, fault management, etc. On the other hand, transparency reduces the possibility of client layer interaction with the optical layer at intermediate nodes along the path. This has an impact on network design, planning, control, and management.Hence, it is important to understand the techniques that provide PLI information to the control plane protocols and that use this information efficiently to compute feasible routes and wavelengths. The purpose of this article is to provide a comprehensive survey of various PLIs, their effects, and the available modeling and mitigation techniques. We then present a comprehensive survey of various PLI-aware network design techniques, regenerator placement algorithms, routing and wavelength assignment algorithms, and PLI-aware failure recovery algorithms. Furthermore, we identify several important research issues that need to be addressed to realize dynamically reconfigurable next-generation optical networks. We also argue the need for PLI-aware control plane protocol extensions and present several interesting issues that need to be considered in order for these extensions to be deployed in real-world networks.Index Terms-Wavelength division multiplexing, wavelengthrouted optical networks, routing and wavelength assignment, optical performance monitoring, optical layer service level agreements, transmission impairments, quality of transmission, physical layer impairment aware routing, impairment constraintbased routing, regenerator placement algorithms, physical layer impairment aware control plane, GMPLS-based WDM networks, and IP over WDM networks.

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Section: Pli-aware Static Network Design and Routingmentioning

confidence: 99%

Section: Pli-aware Dynamic Routing: Single-domainmentioning

confidence: 99%

Physical layer impairment aware routing (PLIAR) in WDM optical networks: issues and challenges

Saradhi

Subramaniam

2009

IEEE Commun. Surv. Tutorials

147

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“…However, in the current phase, a wavelength-routed network must face the technical difficulties in overcoming the physical impairments introduced by optical fibers and optical components such as erbium-doped fiber amplifiers (EDFA) and optical cross connects (OXCs). Physical impairments, e.g., power loss, noises, and dispersions, impose fundamental constraints on the quality of signals in WDM optical networks [1]. Only through 3R regeneration (reamplification, reshaping, and retiming) can a lightpath be recovered from those impairments and be transported farther.…”

mentioning

confidence: 99%

Survivable lightpath provisioning in WDM mesh networks under shared path protection and signal quality constraints

Yang

Shen

Ramamurthy

2005

J. Lightwave Technol.

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“…Hence, in this case, we obtain the total number of ports at the input-side as follows. Equation (17) gives us the number of ports required at FXC layer at each node. After switching at the FXC layer, the number of remaining lightpaths going through the BXC layer is MP − (…”

Section: Case 2: Traffic Demand (T) Is a Multiple Of The Waveband Gramentioning

confidence: 99%

“…The study on multi-fiber networks is motivated by the work in [14]- [17], which has shown that the performance improvement in terms of reduced blocking and better fault tolerance can be obtained by using multifiber networks. Ref.…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of wavelength band switching in multifiber all-optical networks

Cao

Anand

Xiong

et al.

IEEE INFOCOM 2003. Twenty-Second Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE Cat. No.03CH37

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Abstract-Wavelength band switching (WBS) has only recently attracted attention from the optical networking industry for its practical importance in reducing the control complexity and cost of optical cross-connects (OXCs). However, WBS-related problems of theoretical interest have not been addressed thoroughly by the research community, and many issues are still wide open. In particular, WBS is different from wavelength routing, and thus techniques developed for wavelength-routed networks (including e.g., those for traffic grooming) cannot be directly applied to effectively address WBS-related problems.In this paper, we first propose a new multi-granular OXC (MG-OXC) architecture for WBS, which is more flexible than any existing WBS node architectures. We also adopt the most powerful waveband assignment strategy, and develop an efficient heuristic algorithm called Balanced Path routing with Heavy- Traffic first (BPHT). To verify its near-optimality, we also develop an integer linear programming (ILP) model. Both the ILP and the BPHT algorithms can handle the case with multiple fibers per link and hence are more general than our previous single-fiber solutions [1].We conduct a comprehensive evaluation of the benefits of WBS through detailed analysis and simulations. We show that the proposed heuristic BPHT can perform much better than a heuristic which applies the optimal routing and wavelength assignment (RWA) method. We also show that WBS using BPHT is even more beneficial in multi-fiber networks than in single-fiber networks in terms of reducing the port count. Our analytical and simulation results also provide valuable insights into the effect of wavelength band granularity, as well as the trade-offs between the wavelength-hop and the port count required in WBS networks.

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Impact of transmission performance on path routing in all-optical transport networks

Cited by 51 publications

References 19 publications

Physical layer impairment aware routing (PLIAR) in WDM optical networks: issues and challenges

Physical layer impairment aware routing (PLIAR) in WDM optical networks: issues and challenges

Survivable lightpath provisioning in WDM mesh networks under shared path protection and signal quality constraints

Performance evaluation of wavelength band switching in multifiber all-optical networks

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