Design and Simulation of Filterless Optical Networks: Problem Definition and Performance Evaluation

Archambault, Émile; O’Brien, Daniel T.; Tremblay, Christine; Gagnon, François; Bélanger, Michel; Bernier, Éric

doi:10.1364/jocn.2.000496

Cited by 55 publications

(41 citation statements)

References 2 publications

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“…The results are compared to active photonic network solutions, in terms of network cost, wavelength utilization, average demand length or average end-to-end path length of the demands (latency), and average number of fiber link segments per demand. These results complement the results presented in a previous study [7] and make it possible to draw interesting conclusions on the design of regional and core filterless networks. The physical network topologies considered in this performance study are: the 10-node Italian network (15 links, 830 km diameter) [13]; the 17-node Californian network (20 links, 1,027 km diameter) [14]; a modified 8-node COST239 network (12 links, 1,393 km diameter) [15]; the 11-node US network (12 links, 1,924 km diameter).…”

Section: Proposed Filterless Solutions For Regional and Core Networksupporting

confidence: 88%

“…In a filterless optical network, the active photonic switching elements are replaced by passive optical fiber interconnection components. Figure 2 shows a filterless solution example [7] for a 7-node subset of the German network [10]. In Fig.…”

Section: Filterless Optical Networkingmentioning

confidence: 99%

“…Although this aspect has not been explored in this study, it can be assumed that extra traffic protection could be provided through complementary fiber trees, extra capacity built in at nodes or wavelength blockers [7]. Simulations were also performed on physical network topologies with larger diameter size: a modified 8-node COST239 network (1,393 km) [15] and the 11-node US network (1,924 km).…”

Section: Proposed Filterless Solutions For Regional and Core Networkmentioning

confidence: 99%

“…Active photonic switching network solutions can be considered as a best-case scenario relative to opaque networks in terms of cost, switching capacity, and latency, as shown in [3,7]. The active photonic network solutions considered in this study are based on WSS devices, which perform routing on a per wavelength routing basis in the optical domain.…”

Section: Comparative Performance and Cost Studymentioning

confidence: 99%

“…In the second part, the filterless network design problem is defined and a Filterless Network Design and Simulation (FNDS) tool is presented [7]. The filterless network design problem can be divided into two steps: (1) establishment of the fiber connections; and (2) routing and wavelength assignment (RWA), according to the traffic demand.…”

Section: Introductionmentioning

confidence: 99%

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Passive filterless core networks based on advanced modulation and electrical compensation technologies

et al. 2013

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In this paper, the filterless optical network concept is presented and explored through a number of filterless solution examples. In the first part, the filterless network concept is presented and analyzed through a comparative case study. In the second part, the filterless network design problem is defined and a filterless network design tool based on metaheuristics is presented. In the third part of this presentation, filterless network solutions are proposed for a number of core network topologies and compared to active photonic network solutions from the point of view of cost and performance. The results show that cost-effective filterless solutions can be found for different network sizes and topologies. The results of a comparative study show that filterless networks represent a cost-effective and reliable alternative to active optical switching network solutions.

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Section: Proposed Filterless Solutions For Regional and Core Networksupporting

confidence: 88%

Section: Filterless Optical Networkingmentioning

confidence: 99%

Section: Proposed Filterless Solutions For Regional and Core Networkmentioning

confidence: 99%

Section: Comparative Performance and Cost Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Passive filterless core networks based on advanced modulation and electrical compensation technologies

et al. 2013

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Real-time optical spectrum monitoring in filterless optical metro networks

et al. 2020

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Filterless optical networks (FON) have been proposed as a feasible solution for optical metro networks. In addition, as a result of the shorter distance compared to core optical networks, direct-detection optical transmission systems can be used in metro FONs, which reduces costs, as compared to coherent-detection systems. In this work, we present two optical signal tracking approaches for FONs that allow to detect small frequency laser drift problems and enable safely reducing channel spacing. Additionally, we study the most proper resolution for optical spectrum analyzers (OSA) continuously scanning the whole C-band. Proposed approaches are: i) feature-based tracking and ii) residual-based tracking. Experiments are carried out to compare the performance of the approaches for both direct-detection and coherent-detection systems, in the case of a single optical signal with no neighboring signals nearby in the spectrum, as well as in the case of a group of optical signals closely allocated in the spectrum. The results show that the residual-based approach enriched with contextual information enables to better track and correct the wavelength drifts before they reach their limits (e.g., ±2.5 GHz), leading to the guard band reduction for what concerns wavelength drifts.

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A routing modulation and spectrum assignment algorithm for semi-filterless elastic optical networks

Yuan,

Li,

Zhang

et al. 2024

Optical Switching and Networking

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Design and Simulation of Filterless Optical Networks: Problem Definition and Performance Evaluation

Cited by 55 publications

References 2 publications

Passive filterless core networks based on advanced modulation and electrical compensation technologies

Passive filterless core networks based on advanced modulation and electrical compensation technologies

Real-time optical spectrum monitoring in filterless optical metro networks

A routing modulation and spectrum assignment algorithm for semi-filterless elastic optical networks

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