Extension of TDM-PON Standards to a Single-Fiber Ring Access Network Featuring Resilience and Service Overlay

Bock, Carlos; Lazaro, Jose A.; Prat, Josep

doi:10.1109/jlt.2007.896792

Cited by 23 publications

(17 citation statements)

References 4 publications

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“…Output AWG 's (1 ≤ J ≤ 4) K th column is shown in Eq. (9). In light of the characteristics of optical wavelengths and orthogonal vector group, an optical wavelength (λ) can be denoted as one vector ( λ) in an orthogonal vector group.…”

Section: (Ops-m)-based Wdm-pon Under Normal Statementioning

confidence: 99%

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An (OPS-M)-based WDM-PON with functions of wavelength tri-reuse and all-sided fiber protection

et al. 2015

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In this paper, an optical power splitter module (OPS-M) and (OPS-M)-based WDM-PON are proposed.The symmetry and passivity of OPS-M makes it easy to integrate and dirt cheap in practice. It shows this OPS-M can be widely applied in an optical network. By utilizing the OPS-M, the wavelength tri-reuse is realized. At the same time, the coherent interference can also be eliminated due to cross-wavelength reuse. By introducing matrix operations and orthogonal vector group, the relations among wavelengths, optical network units and their services are shown clearly. By designing structure of ONU, feeder fiber and distributed fiber failures can be self-protected. Besides, the ONUs remain colorless and the system has passivity. By the simulation, feasibility of the scheme is demonstrated.

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Section: (Ops-m)-based Wdm-pon Under Normal Statementioning

confidence: 99%

“…The star WDM-PON has the characteristics of easy maintenance and failure isolation [8], but it does not have resilience against fiber failure. The ring structure has the advantage of self-healing [9], but its weakness is that one fiber's failure often influences many subscribers. Generally, the star structure fits WDM technology.…”

Section: Introductionmentioning

confidence: 99%

An (OPS-M)-based WDM-PON with functions of wavelength tri-reuse and all-sided fiber protection

et al. 2015

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“…The evolution of the demand in date rata and power budget in access networks, leading to extended reach and higher number of users, is forcing the convergence between access and metro transport networks, as shown in Fig. 2 The proposed network aims serving more than 1,000 users spread along distances up to 100 km, at 10 Gbit/s, with 100 Mbit/s to 10 Gbit/s per user in a flexible way (Bock et al 2007;Lazaro et al 2007a;Lazaro et al 2008). The ring and tree topology can be considered as a natural evolution from the conventional situation where Metro and Access networks are connected by heterogeneous O/E/O equipment at the interfaces between the FTTH OLTs and the Metro network nodes towards an integrated Metro-Access network.…”

Section: Convergence Between Metro and Accessmentioning

confidence: 99%

Signal Processing, Management and Monitoring in Transmission Networks

Vázquez

Montalvo

Ahmed

et al. 2011

Optical Transmission

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1higher, linear and non-linear fibre impairments become prominent factors affecting the signal quality. Thus, new techniques in both physical layer and network layer are necessary for mitigating impairments to accommodate high-speed traffic (Tomkos et al. 2002). On the other hand, the flexibility of modern networks with dynamic and distributed management, where lightpaths can be dynamically and automatically assigned end-to-end, increases the risk of changing path conditions that affect signal quality and consequently quality of service (QoS) over the lifetime of a connection as well as for subsequent connection set-up requests (on-demand routing and wavelength assignment -RWA). For traditional connection provisioning an ideal physical layer, ignoring transmission impairments (Chlamtac et al. 1992) could be assumed because the implicit per hop regeneration (optics-to-electronics-to-optics conversion -O/E/O) compensated signal impairments hop-by-hop in a rather static manner (section commissioning). For end-to-end all-optically switched connections using photonic cross-connect switches (PXC), the conditions change and common practice is not applicable. Anyhow, intelligent connection provisioning is an important traffic engineering problem, and minimising operational cost as well as efficiently utilising network resources is the main driver. In this context, it seems important to have flexible routing protocols that take into consideration the most relevant physical impairments, and are able to exchange messages with their values as part of the route information with others. This condition, if definitely used to calculate routing, will surely assure better success in data delivery over the network (Huang et al. 2005). Irrespective of the control architecture chosen by an operator of an optical network, the included control plane (in charge of setting up and tearing down optical circuits; also known as lightpaths) needs to have a proper set of tools to satisfyingly deal with physical impairments. The most essential tools are: optical signal monitoring, signal processing and impairment compensation techniques (each all-optically and/or electrically). With the help of these tools, it is possible to predict the QoT (quality of transmission) attainable for a lightpath at a given time (i.e. the latest network-wide monitoring instant), and the control plane can route requests across the network

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“…Compared with tree-based network, the network with ring topology has better performance in network reliability [8,[10][11][12]. Relying on the superiority of its physical topology, single-fiber ring-based networks can provide self protection without any redundant protection fiber [13][14][15][16]. To against simultaneous failure of multiple fibers in the network, there are some dual-fiber ring-based networks proposed [16][17][18][19][20][21].…”

mentioning

confidence: 99%

“…And owing to this type of topology, the network based on ring can consolidate both metro and access systems into a single network and provide large capacity for users easily [22,23]. But, since both downstream and upstream signals in conventional ring scheme are transmitted in only one direction [15][16][17][18], unlike the case in tree-based network, the receiving power in each node is widely different because of a significant diversity in link loss. And as the number of user increases in future, such heterogeneity of receiving power will be further enlarged.…”

mentioning

confidence: 99%

High-reliable WDM access network based on alternate transmission mode featuring power optimization and network stability

Feng

Gan

Gong

et al. 2015

Optical Switching and Networking

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Extension of TDM-PON Standards to a Single-Fiber Ring Access Network Featuring Resilience and Service Overlay

Cited by 23 publications

References 4 publications

An (OPS-M)-based WDM-PON with functions of wavelength tri-reuse and all-sided fiber protection

An (OPS-M)-based WDM-PON with functions of wavelength tri-reuse and all-sided fiber protection

Signal Processing, Management and Monitoring in Transmission Networks

High-reliable WDM access network based on alternate transmission mode featuring power optimization and network stability

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