Contention Resolution in Optical Packet Switching

Yao, Shun; Mukherjee, Biswanath; Dixit, Sudhir

doi:10.1002/0471478342.ch5

Cited by 9 publications

(3 citation statements)

References 21 publications

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“…5(a). The total blocking probability can be seen in this figure with a purple continuous line without markers, calculated by using (8). This figure shows that the major contribution for blocking probability is due to OCS, followed by OBS and OPS.…”

Section: Resultsmentioning

confidence: 88%

Modeling an Optical Network Operating with Hybrid-Switching Paradigms

Bonani

2016

J. Microw. Optoelectron. Electromagn. Appl.

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Section: Resultsmentioning

confidence: 88%

Modeling an Optical Network Operating with Hybrid-Switching Paradigms

Bonani

2016

J. Microw. Optoelectron. Electromagn. Appl.

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“…This situation may arise if the contention is persistent. The WU also contains a set of full range wavelength converters used for ODL buffers conflicts resolution [20]. The implementation of the virtual optical memory will be discussed in a following section.…”

Section: The Waiting Unitmentioning

confidence: 99%

A New All-Optical Switching Node Including Virtual Memory and Synchronizer

Batti¹,

Zghal²,

Boudriga³

2010

JNW

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This paper presents an architecture for an all optical switching node. The architecture is suitable for optical packet and optical burst switching and provides appropriate contention resolution schemes and QoS guarantees. A concept, called virtual memory, is developed to allow controllable and reasonable periods for delaying optical traffics. Related to its implementation, several engineering issues are discussed, including the use of loopbased optical delay lines, fiber Bragg gratings, and limited number of signal amplifications. In particular, two implementations using optical flip-flop and laser neuron network based control units are analyzed. This paper also discusses the implementation and performance of an alloptical synchronizer that is able to synchronize arriving data units to be aligned on the clock signal associated with the beginning time of slots, in the node, with an acceptable error.

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“…It opens the optical burst gate (OBG) or the optical packet gate (OPG), depending on the incoming unit type. Today, the lack of fast, scalable, and robust optical bit-level processing technologies has led to the implementation of the major functions of the SCU at the electronic level [12].…”

Section: Switch Node Architecturementioning

confidence: 99%

Contention Resolution for Transmission Control Protocol over Optical Burst-Switching Networks Using Random Segment Dropping

Abdallah¹,

Hamdi²,

Boudriga³

et al. 2009

SIMULATION

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Optical burst switching (OBS) is a promising method for data transfer in photonic networks based on a Wavelength Division Multiplexing (WDM) technology. Transmission control protocol (TCP)-based applications generate the majority of data traffic in the Internet1 thus, understanding and improving the performance of TCP over OBS networks is critical. In this paper, we develop a novel burstdropping strategy to improve the quality of service provided by TCP over OBS networks. Our approach relies on random-segment dropping according to the capacity of a special optical component, called the optical virtual memory, which is used for buffering purposes within the optical switches. The core node predicts incipient congestion by computing the average blocking duration in the optical virtual memories. When this size exceeds a threshold, segments are randomly dropped. Simulation results show that the proposed method performs better than common techniques in terms of burst loss probability and transmission delay.

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Contention Resolution in Optical Packet Switching

Cited by 9 publications

References 21 publications

Modeling an Optical Network Operating with Hybrid-Switching Paradigms

Modeling an Optical Network Operating with Hybrid-Switching Paradigms

A New All-Optical Switching Node Including Virtual Memory and Synchronizer

Contention Resolution for Transmission Control Protocol over Optical Burst-Switching Networks Using Random Segment Dropping

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