Optical Broadcast-and-Select Network Architecture with Centralized Multi-Carrier Light Source

Cai, Yi; Oki, Eiji; Matsuura, Motoharu; Kishi, Naoto; Miki, Tsuneharu

doi:10.1109/icc.2009.5199275

Cited by 8 publications

(10 citation statements)

References 9 publications

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“…However, we did not demonstrate experimentally the feasibilities of these networks in our previous works. In addition, the wavelength resources distributed by the MCLS in the "drop-add-drop" network were not utilized effectively as is true for the other reported works [10], [12]− [16]. The dropping of a carrier wavelengths means that it is virtually stripped from the multi-carrier signal and so cannot be utilized by other nodes in the network.…”

Section: Introductioncontrasting

confidence: 50%

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Multi-Carrier Distributed WDM Ring Network Based on Reconfigurable Optical Drop-Add-Drop Multiplexers and Carrier Wavelength Reuse

Matsuura

Oki

2010

2010 IEEE International Conference on Communications

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This paper presents and experimentally demonstrates a multi-carrier distributed wavelength-divisionmultiplexing (WDM) ring network based on reconfigurable optical "drop-add-drop" multiplexers for regional and metro network applications. In the "drop-add-drop" network, optical carriers generated by a centralized multi-carrier light source (MCLS) are "dropped" at the source nodes and used for uplink transmission. Data are "added" to the network by external modulation of one or more carriers. Data are then "dropped" at the destination nodes. The reconfigurable optical add/drop multiplexer (ROADM) at each access node is not only used to "add" and "drop" data, but also to "drop" carriers, which eliminates the many distributed laser-diodes used in the conventional network. In this work, we successfully demonstrate, for the first time, a "drop-add-drop" network experiment offering 10 Gbit/s WDM transmission. Moreover, to dramatically improve the utilization efficiency of the carrier wavelengths distributed by the MCLS in the "drop-add-drop" network, we introduce the carrier wavelength reuse technique which sets the carrier extraction circuits in each access node. This technique enables us to reuse the carrier wavelengths that were already utilized for data transmission between prior source and destination nodes. To evaluate the effect of carrier wavelength reuse, we compare the blocking probabilities of the "drop-add-drop" networks with and without carrier wavelength reuse. The results show that wavelength reuse dramatically reduced the blocking probability. In addition, we numerically analyze the advantages of the "drop-add-drop" network over the conventional ROADM network in terms of network cost and power consumption.

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Section: Introductioncontrasting

confidence: 50%

“…Previously, we proposed some architectures for multi-carrier distributed networks, and numerically evaluated network performances [14]− [17]. In particular, the optical "drop-adddrop" network based on ROADM is useful for migrating or upgrading existing optical networks [17].…”

Section: Introductionmentioning

confidence: 99%

Multi-Carrier Distributed WDM Ring Network Based on Reconfigurable Optical Drop-Add-Drop Multiplexers and Carrier Wavelength Reuse

Matsuura

Oki

2010

2010 IEEE International Conference on Communications

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“…When the required number of access wavelengths at EN becomes very large, it greatly reduces network cost and network control complexity [9]. − Static, dynamic, and hybrid static-dynamic wavelength selection and utilization are enabled by using different band pass filters [10,18]. Fixed band pass filters are used to select the statically allocated wavelengths to each EN.…”

Section: Network Featuresmentioning

confidence: 99%

“…An optical broadcast-and-select network architecture with a centralized multi-carrier light source for regional/metro network applications was proposed in [9]. The large number of optical carriers/wavelengths generated by the centralized MCLS are broadcast to all network nodes for data transmission, instead of using distributed laser diodes in the conventional network architecture.…”

Section: Introductionmentioning

confidence: 99%

“…The proposed network architecture greatly reduces network cost compared with the conventional one when the required number of access wavelengths at each network node becomes large. The network architecture design and performance evaluation was presented in [10]. To utilize the carrier wavelengths efficiently, a framework of wavelength allocation and selection was introduced.…”

Section: Introductionmentioning

confidence: 99%

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A resilient star-ring optical broadcast-and-select network with a centralized multi-carrier light source

et al. 2010

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This article presents a resilient star-ring optical broadcast-and-select network with a centralized multi-carrier light source (C-MCLS). It consists of a star part network and a ring part network. Optical carriers generated by the C-MCLS are broadcast to all network nodes, which select and utilize them for data transmission. Optical carrier distribution as well as data transmission and receiving are performed in the star part network. The ring part network is for fiber failure recovery. The network resilience property enables the design of a fast distributed failure recovery scheme to deal with single and multiple fiber failures. We introduce a fiber connection automatic protection switching (FC-APS) architecture that only consists of optical couplers and 1×2 optical switches for each network node. Based on the FC-APS architecture, we design a distributed failure recovery scheme to recover the carriers and data affected by fiber failures. The fiber failure detection and failure recovery operations are performed by each network node independently only using its local information. We evaluate the recovery time of the distributed failure recovery scheme compared with that of the centralized one. Numerical results show that the distributed scheme greatly reduces the recovery time compared to the centralized configuration in the recoveries of both single and multiple fiber failures. Optical power loss analysis and compensation of the recovery routes in the distributed scheme are also presented. We show the required number of optical amplifiers for the longest recovery route in the distributed

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Spectrum-efficient optical drop-add-drop network with a centralized multi-carrier light source

2014

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Optical Broadcast-and-Select Network Architecture with Centralized Multi-Carrier Light Source

Cited by 8 publications

References 9 publications

Multi-Carrier Distributed WDM Ring Network Based on Reconfigurable Optical Drop-Add-Drop Multiplexers and Carrier Wavelength Reuse

Multi-Carrier Distributed WDM Ring Network Based on Reconfigurable Optical Drop-Add-Drop Multiplexers and Carrier Wavelength Reuse

A resilient star-ring optical broadcast-and-select network with a centralized multi-carrier light source

Spectrum-efficient optical drop-add-drop network with a centralized multi-carrier light source

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