JumpStart: A Just-in-Time Signaling Architecture for WDM Burst-Switched Networks

Rouskas, George N.

doi:10.1007/3-540-47906-6_88

Cited by 57 publications

(87 citation statements)

References 3 publications

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“…However, for a given scheme X, it is assumed that T setup (X) is constant for each burst in the network. This is a reasonable assumption, since in practice, the setup message processing is mostly performed in hardware [7]. • T OXC is the amount of time needed for an OXC to adjust all its elements from input to output port.…”

Section: Obs Networkmentioning

confidence: 99%

Analysis of blocking probability in optical burst switched networks

2007

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In this article, we study the blocking probability in a wavelength division multiplexing (WDM) based asynchronous bufferless optical burst switched (OBS) network, equipped with a bank of wavelength converters. Our analysis encloses two wavelength reservation schemes JIT (just-intime) and JET (just-enough-time), and two-class data rate. The contribution of our work includes: (i) derivation of an accurate model for blocking probability of lower priority bursts in case of a non-preempted model; (ii) provision of the analytical model for blocking probability calculation in the OBS network, which includes these variables: two signaling schemes, partial wavelength conversion, two-class data, traffic intensity, cross-connect speed, number of wavelengths in WDM fiber, number of fibers in the node, number of wavelength converters, and number of nodes in the path; (iii) simulation results, which show that partial wavelength conversion provide quite satisfactory quality of service. We compare performance in a single OBS node, under various sets of parameter values. The OBS network shows great flexibility in terms of used multiclass data, and there is no dependence on the used higher layer protocol.

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Section: Obs Networkmentioning

confidence: 99%

Analysis of blocking probability in optical burst switched networks

2007

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“…Of the various protocols applied in contemporary OBS networks (e.g., JET (Just Enough Time) [3,5,[16][17][18][19], JIT (Just-In-Time) [20][21][22], ODD (Only Destination Delay) [23], and so forth. ), JET is one of the most widely employed.…”

Section: Fdl Compensation Switching (Fcs) Schemesmentioning

confidence: 99%

On burst-header contention-resolution in OBS networks

2008

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Advances in enabling technologies and the explosive growth of Internet traffic has led to the widespread proliferation of network systems in recent years. With their relatively low cost, high throughputs, high-bandwidth utilization, and low-transmission latency, Optical Burst Switching (OBS) networks represent an ideal solution for next-generation Internet applications. However, in OBS networks, Burst Header Packet (BHP) contentions occur when two or more BHPs are switched simultaneously to the same output port of a given core node. These contention events result in significant losses of the corresponding data burst. Accordingly, this study presents a Store-and-forward COntention-REsolution mechanism, designated as SCORE, which utilizes fiber delay line buffers to resolve the BHP collision problem, thereby minimizing the burst loss rate. The results of a series of simulations performed using an OIRC OBS-ns simulator confirm the effectiveness and efficiency of the proposed scheme.

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“…(ARDA focuses on high-performance data communications requirements that cannot be addressed by technologies used in today's Internet [19].) We have developed an open, published specification of the Jumpstart JIT signaling protocol [4,20], inspired by an earlier work by Wei and McFarland [3]. The JIT protocol is significantly simpler than either JET or Horizon, since it does not involve complex scheduling or void filling algorithms; therefore, it is amenable to hardware implementation.…”

Section: Introductionmentioning

confidence: 99%

“…A number of wavelength reservation schemes have been proposed for OBS, including just-enough-time (JET) [1], Horizon [2], just-in-time (JIT) [3,4], and wavelength-routed OBS [5] which uses two-way reservations. The burst loss performance of OBS networks has been studied extensively using either simulation or simple analytical models [2,[6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A Detailed Analysis and Performance Comparison of Wavelength Reservation Schemes for Optical Burst Switched Networks?

Teng

Rouskas

2005

Photon Netw Commun

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We present a detailed analysis of the JIT, JET, and Horizon wavelength reservation schemes for optical burst switched (OBS) networks. Our analysis accounts for several important parameters, including the burst offset length, and the optical switching and hardware processing overheads associated with bursts as they travel across the network. The contributions of our work include: (i) analytical models of JET and Horizon (on a single OBS node) that are more accurate than previously published ones, and which are valid for general burst length and offset length distributions; (ii) the determination of the regions of parameter values in which a more complex reservation scheme reduces to a simpler one; and (iii) a new reservation scheme, JIT + , which is as simple to implement as JIT, but whose performance tracks that of Horizon and JET. We compare the performance of the four wavelength reservation schemes on a single OBS node, as well as on a path of OBS nodes with cross traffic, under various sets of parameter values. Our major finding is that, under reasonable assumptions regarding the current and future state-of-the-art in optical switch and electronic hardware technologies, the simplicity of JIT and JIT + seem to outweigh any performance benefits of Horizon and JET.

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JumpStart: A Just-in-Time Signaling Architecture for WDM Burst-Switched Networks

Cited by 57 publications

References 3 publications

Analysis of blocking probability in optical burst switched networks

Analysis of blocking probability in optical burst switched networks

On burst-header contention-resolution in OBS networks

A Detailed Analysis and Performance Comparison of Wavelength Reservation Schemes for Optical Burst Switched Networks?

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