All-optical packet-switched metropolitan-area network proposal

Green, P.E.; Coldren, L.A.; Johnson, K.M.; Lewis, J.G.; Miller, Calvin M.; Morrison, J.; Olshansky, R.; Ramaswami, Rajiv; Smithand, E.H.

doi:10.1109/50.233238

Cited by 75 publications

(17 citation statements)

References 18 publications

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“…Apart from a few older studies, such as [8], [24], [25], metro WDM networks have just recently begun to attract the interest from the research community [26]. A metro network based on OADMs has recently been studied in [27].…”

Section: A Related Workmentioning

confidence: 99%

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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Section: A Related Workmentioning

confidence: 99%

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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“…Despite the limited functionality of optical technologies, various OPS systems have been developed for more than 15 years to exploit the potential abilities of OPS systems [10]- [22]. Although OPS systems themselves have not been used in commercial networks at present, they play an important role in the research activity as a vehicle leading to many novel basic technologies.…”

Section: Photonic Technologies For the Nwgn Physical Layermentioning

confidence: 99%

Photonic Network Technologies for New Generation Network

Wada

Furukawa

2011

IEICE Trans. Commun.

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SUMMARYIn this paper, we show the recent progress of photonic network technologies for the new generation network (NWGN). The NWGN is based on new design concepts that look beyond the next generation network (NGN) and the Internet. The NWGN will maintain the sustainability of our prosperous civilization and help resolve various social issues and problems by the use of information and communication technologies. In order to realize the NWGN, many novel technologies in the physical layer are required, in addition to technologies in the network control layer. Examples of cutting-edge physical layer technologies required to realize the NWGN include a terabit/s/port or greater ultra-wideband optical packet switching system, a modulation-format-free optical packet switching (OPS) node, a hybrid optoelectronic packet switching node, a packet-based reconfigurable optical add/drop multiplexer (ROADM) system, an optical packet and circuit integrated node system, and optical buffering technologies. key words: new generation network, optical packet switching, optical packet and circuit integrated network, transparent switching, burst-mode devices

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“…Optical packet switching (OPS) enables finer network granularity and energy-efficiency because optical signals are finely divided in the temporal domain. Therefore, research and development on OPS have been carried out to achieve higher switching performance [68]- [73].…”

Section: Offloading Techniques By Using Optical Layermentioning

confidence: 99%

Optical Networking Paradigm: Past, Recent Trends and Future Directions

Oki

Wada

Okamoto

et al. 2017

IEICE Trans. Commun.

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SUMMARY This paper presents past and recent trends of optical networks and addresses the future directions. First, we describe path networks with the historical backgrounds and trends. path networks have advanced by using various multiplexing technologies. They include time-division multiplexing (TDM), asynchronous transfer mode (ATM), and wavelengthdivision multiplexing (WDM). ATM was later succeeded to multi-protocol label switching (MPLS). Second, we present generalized MPLS technologies (GMPLS). In GMPLS, the label concept of MPLS is extended to other labels used in TDM, WDM, and fiber networks. GMPLS enables network operators to serve networks deployed by different technologies with a common protocol suite of GMPLS. Third, we describe multi-layer traffic engineering and a path computation element (PCE). Multi-layer traffic engineering designs and controls networks considering resource usages of more than one layer. This leads to use network resources more efficiently than the single-layer traffic engineering adopted independently for each layer. PCE is defined as a network element that computes paths, which are used for traffic engineering. Then, we address software-defined networks, which put the designed network functions into the programmable data plane by way of the management plane. We describe the evaluation from GMPLS to software defined networking (SDN) and transport SDN. Fifth, we describe the advanced devices and switches for optical networks. Finally, we address advances in networking technologies and future directions on optical networking.

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All-optical packet-switched metropolitan-area network proposal

Cited by 75 publications

References 18 publications

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

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

Photonic Network Technologies for New Generation Network

Optical Networking Paradigm: Past, Recent Trends and Future Directions

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