Optical packet switching in core networks: between vision and reality

El-Bawab, Tarek S.; Shin, Jong‐Dug

doi:10.1109/mcom.2002.1031830

Cited by 139 publications

(64 citation statements)

References 12 publications

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“…To fully utilize such a high data rate, alloptical networks, in which data can be delivered transparently in the optical domain, have been proposed. In the literature, there are mainly three approaches to optical switching: 1) wavelength-routed or optical circuit switching (OCS) [6], 2) optical burst switching (OBS) [7], and 3) optical packet switching (OPS) [9], [10].…”

Section: A Existing Optical Switching Paradigmsmentioning

confidence: 99%

A Design Principle for Future High-Speed Networks

Zhang

et al. 2007

2007 High-Speed Networks Workshop

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Abstract-In this paper, we discuss the design philosophy for future high-speed networks. We argue that the fundamental issue for a communication network is to provide connectivity, which means that one node in the network shall be able to send data to another node within a certain amount of time. To provide connectivity in high-speed networks, the key challenge is the scalability issue, which has not been fully addressed in most existing network architectures. To address this challenge, we propose to utilize the hypernetwork theory as the foundation for the design of future high-speed networks. We then use optical network and high-speed wireless network as two examples to illustrate and justify the hypernetwork-based network architecture.

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Section: A Existing Optical Switching Paradigmsmentioning

confidence: 99%

A Design Principle for Future High-Speed Networks

Zhang

et al. 2007

2007 High-Speed Networks Workshop

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“…This situation led to research interest in optical packet switching (OPS), which appears to be a strong candidate because of the high speed, data rate/format transparency and configurability it offers [2,3] . In general, optical packet switched networks are divided into two categories: slotted (synchronous) and unslotted (asynchronous) [2] .…”

Section: Introductionmentioning

confidence: 99%

MPLS over Segmented WDM Optical Packet Switching Networks

Mellah¹,

Abbou²

2006

J. of Computer Science

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Wavelength Division Multiplexing (WDM) is a promising solution for data transport in future all-optical wide area networks. Such networks consist of fibers joined by dynamically controllable cross-connects which provide purely optical transport between pairs of network access stations. Optical packet switching (OPS) is optical switching with the finest granularity. Incoming packets are switched all-optically without being converted to electrical signal. There are two categories of OPS networks. Slotted (synchronous) OPS networks, in which all the packets have the same size and unslotted (asynchronous) OPS networks, where packets may or may not have the same size. In this study we propose to integrate MPLS over slotted OPS networks by aggregating optical packets into a labeled optical burst. The burst has a fixed number of packets (segments). The number of segments in each burst is encoded in the experimental field of the MPLS header.

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“…These two system equations (5) and (6), together with their respective probability mass functions (2) and (3), provide the input for the analysis.…”

Section: System Equationsmentioning

confidence: 99%

“…Although data packets travel through the backbone in the form of light, they are still converted into electricity at every hop, in order to extract header information, buffer them, convert them back to light and transmit them to the next hop. Since this conversion is expected to be the bottleneck in the near future, the research community proposes alternative switching approaches, such as Optical Burst Switching (OBS) [1] and Optical Packet Switching (OPS) [2].…”

Section: Introductionmentioning

confidence: 99%

Tracing an Optical Buffer’s Performance: An Effective Approach

Rogiest

Fiems

Laevens

et al.

Lecture Notes in Computer Science

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Abstract. Optical Burst Switching proposes a future-proof alternative to the current electronic switching in the backbone. The involved optical buffers are implemented with a set of Fiber Delay Lines, and suffer serious performance loss, when compared to RAM. Various existing models trace this loss, but either lack generality, accuracy, or effectiveness. The optical buffer model we constructed is valid for general line lengths and burst sizes. An effective approach allowed to strongly reduce the solution's complexity, while remaining exact. This document presents the key formulas and performance graphs. The obtained model serves as a basic optimization tool, yielding results fast.

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Optical packet switching in core networks: between vision and reality

Cited by 139 publications

References 12 publications

A Design Principle for Future High-Speed Networks

A Design Principle for Future High-Speed Networks

MPLS over Segmented WDM Optical Packet Switching Networks

Tracing an Optical Buffer’s Performance: An Effective Approach

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