Metropolitan DWDM: a dynamically configurable ring for the KomNet field trial in Berlin

Stoll, D.; Leisching, P.; Bock, H.; Richter, A.

doi:10.1109/35.900638

Cited by 30 publications

(16 citation statements)

References 7 publications

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“…The network applies a destination-stripping technique, in which the destination marks a slot as an idle slot once it has successfully retrieved the transmitted data. Dual-ring networks [7,8,16,20] have several key advantages compared to their single ring counterparts, including a greater scalability and a higher throughput. Furthermore, dual-ring networks provide an enhanced fault tolerance toward node/fiber failures.…”

Section: Network Architecturementioning

confidence: 99%

“…Many studies have investigated appropriate WDM-based network topologies and optical packet switching techniques for metropolitan areas [3][4][5]. WDM metro networks, which typically have either a star [3][4][5] or a ring topology [6][7][8][9][10][11][12][13][14][15], have attracted particular interest due to their potential to support next-generation MANs with huge bandwidth.…”

Section: Introductionmentioning

confidence: 99%

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Integration of differentiated services with fairness control on a WDM metro ring

Chang

Lin

2006

Photon Netw Commun

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This study develops a Fair and Efficient Integrated Media Access Control (FEIMAC) protocol, designated FEIMAC, for a wavelength division multiplexing (WDM) dual-ring network known as FT 2 -TR 2 . This system is an extended version of the original unidirectional FT-TR ring architecture, in which the nodes are equipped with a fixed-tuned transmitter and a tunable receiver on each ring. FEIMAC is derived from the Fairness Control with Collision Avoidance (FCCA) protocol proposed in a previous study by the current authors (Chang, W.-R. et al.: FCCA: A reversedirection-based MAC protocol suite for WDM Metropolitan Ring Networks, Proc. of IEEE APCC 05, Perth, Australia, October 2005, pp. 946-950). FCCA is a collision-free medium access control (MAC) protocol, which achieves an efficient exploitation of the available bandwidth while guaranteeing each node a fair access to the network resources. In addition to the capabilities described above, FEIMAC employs a framed approach, in which each frame consists of a "real-time subframe" followed by a "best-effort subframe", to support differentiated services of real-time and best-effort traffic streams. The simulation results demonstrate the effectiveness and efficiency of the proposed integrated protocol.

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Section: Network Architecturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Integration of differentiated services with fairness control on a WDM metro ring

Chang

Lin

2006

Photon Netw Commun

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“…A metro network based on OADMs has recently been studied in [27]. This network is geared toward optical circuit switching.…”

Section: A Related Workmentioning

confidence: 99%

“…HORNET [42], [43] and the metro networks studied in [27]- [31] have a ring topology, i.e., transmissions typically have to traverse multiple network nodes. These networks are therefore fundamentally different from the packetswitched single-hop network studied here.…”

Section: A Related Workmentioning

confidence: 99%

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Wavelength reuse for efficient packet-switched transport in an awg-based metro wdm network

Scheutzow

Maier

Reisslein

et al. 2003

J. Lightwave Technol.

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Abstract-Metro wavelength-division multiplexed (WDM) networks play an important role in the emerging Internet hierarchy; they interconnect the backbone WDM networks and the local-access networks. The current circuit-switched SONET/synchronous digital hierarchy (SDH)-over-WDM-ring metro networks are expected to become a serious bottleneck-the so-called metro gap-as they are faced with an increasing amount of bursty packet data traffic and quickly increasing bandwidths in the backbone networks and access networks. Innovative metro WDM networks that are highly efficient and able to handle variable-size packets are needed to alleviate the metro gap. In this paper, we study an arrayed-waveguide grating (AWG)-based single-hop WDM metro network. We analyze the photonic switching of variable-size packets with spatial wavelength reuse. We derive computationally efficient and accurate expressions for the network throughput and delay. Our extensive numerical investigations-based on our analytical results and simulations-reveal that spatial wavelength reuse is crucial for efficient photonic packet switching. In typical scenarios, spatial wavelength reuse increases the throughput by 60% while reducing the delay by 40%. Also, the throughput of our AWG-based network with spatial wavelength reuse is roughly 70% larger than the throughput of a comparable single-hop WDM network based on a passive star coupler (PSC).Index Terms-Arrayed-waveguide grating (AWG), medium access control, metro wavelength-division multiplexed (WDM) network, multiple free spectral ranges, passive star coupler (PSC), photonic packet switching, spatial wavelength reuse.

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DWDM Ring Networks

Stoll

Xie

Heiles

2003

Wiley Encyclopedia of Telecommunications

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This article describes DWDM ring networks from three viewpoints. The first viewpoint is the network architecture level. Here, the architecture of two–fiber–rings and of four–fiber rings, protection schemes, and the layer network structure of all–optical transport networks are discussed. In the second viewpoint, the network element level that comprises of the optical add/drop multiplexers (OADM) and their characteristic features (i.e., add/drop capacity, static and dynamic configuration, wavelength routing capability, transparent and opaque applications) is discussed. The third viewpoint is the component level. Tunable filters, switching fabrics, WDM multiplexers and demultiplexers, and interleaver filters are the areas discussed under this viewpoint.

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Metropolitan DWDM: a dynamically configurable ring for the KomNet field trial in Berlin

Cited by 30 publications

References 7 publications

Integration of differentiated services with fairness control on a WDM metro ring

Integration of differentiated services with fairness control on a WDM metro ring

Wavelength reuse for efficient packet-switched transport in an awg-based metro wdm network

DWDM Ring Networks

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