Investigation of dynamic resource allocation based on transmission performance analysis and service classification in wavelength-division-multiplexing optical networks

Tang, Yong; Sun, Xiaohan; Min, Rao; Li, Lei; Wang, Chen; Zhang, Mingde

doi:10.1016/s0030-4018(02)02014-x

Cited by 15 publications

(4 citation statements)

References 10 publications

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“…A hierarchical routing and wavelength assignment model is investigated in [27] for high-speed connection provisioning where the OSNR and PMD effects are estimated at the physical layer. In [28], based on the integrated consideration of signal transmission impairments and service classification, a multi-path routing and wavelength assignment algorithm is adopted to set up an appropriate lightpath that matches the request priority. By analyzing the transmission quality of lightpath candidates, differentiated QoS in the optical domain is provided.…”

Section: Related Workmentioning

confidence: 99%

Physical impairment aware scheduling in optical burst switched networks

Fan

Wang

2009

Photon Netw Commun

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Optical burst switching (OBS) presents itself as a promising technology for bridging the gap between optical wavelength switching and optical packet switching. Increasingly, researchers attempt to incorporate more realistic constraints into the design of OBS networks. Optical signal transmission quality is subject to various types of physical impairment introduced by optical fibers, switching equipment, or other network components. The signal degradation due to physical impairments may be significant enough such that the bit-error rate of received signals is unacceptably high at the destination, rendering the signal not usable. In this paper, based on earlier work, we study the burst scheduling problem in OBS networks, taking into account physical impairment effects. We propose three effective burst scheduling algorithms: (1) a JET based Physical Impairment Constrained Algorithm (JETPIC), (2) an Integrated Physical Impairment Constrained Algorithm (IPIC), and (3) an Enhanced Integrated Physical Impairment Constrained Algorithm (EIPIC). At an OBS node, the proposed algorithms schedule bursts for transmission by searching for available resources as well as verifying signal quality. Our simulation results show that the proposed algorithms are effective in terms of reducing the burst blocking probability. In general, algorithm JETPIC outperforms algorithms IPIC and EIPIC in burst blocking probability and average end-to-end delay performance.

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Section: Related Workmentioning

confidence: 99%

Physical impairment aware scheduling in optical burst switched networks

Fan

Wang

2009

Photon Netw Commun

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“…A hierarchical routing and wavelength assignment model is investigated in [29] for high-speed connection provisioning where the OSNR and PMD effects are estimated at the physical layer. In [30], based on the integrated consideration of signal transmission impairments and service classification, a multi-path routing and wavelength assignment algorithm is adopted to set up an appropriate lightpath that matches the request priority. By analyzing the transmission quality of lightpath candidates, differentiated QoS in the optical domain is provided.…”

Section: Related Workmentioning

confidence: 99%

Impairment-aware ordered scheduling in dual-header optical burst switched networks

Fan

Wang

2009

Photon Netw Commun

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Optical burst switching (OBS) is a promising technology for bridging the gap between optical wavelength switching and optical packet switching. Optical signal transmission quality is subject to various types of physical impairment introduced by optical fibers, switching elements, or other network components. The signal degradation due to physical impairment may be significant enough such that the bit-error rate of received signals is unacceptably high at the destination, rendering the signal to not usable. In this article, based on earlier study, we study the burst-scheduling problem in OBS networks using two control packets for each data burst, taking into account physical impairment effects. We propose a burst-scheduling algorithm that accommodates incoming bursts by primary path routing, deflection routing, and burst scheduling. We design an admission control mechanism to use network resources efficiently. At an OBS node, the proposed algorithm schedules bursts for transmission by searching for available resources as well as verifying signal quality. Our simulation results demonstrate that the proposed algorithm is effective in terms of reducing the burst-blocking probability.

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“…It includes crosstalk in the wavelengthrouting nodes, wavelength dependence and saturation of amplifier gains and ASE generation in EDFAs, along with receiver shot and thermal noise. Tang et al [10] considered polarization mode dispersion (PMD), crosstalk and nonlinear effects in a heuristic RWA algorithm. Levandovsky [11] presented a set of guidelines for a routing algorithm based on evaluation of the noise figure to take into account noise accumulation in the lightpath (no gain saturation is considered).…”

Section: Impact Of Optical Switch and Amplifier Characteristics On Ph...mentioning

confidence: 99%

Impact of Optical Switch and Amplifier Characteristics on Physical Impairment-based Wavelength -Routed Optical Networks

Filho¹,

Oliveira²,

Arantes³

et al. 2003

Anais Do XX Simpósio Brasileiro De Telecomunicações

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Investigation of dynamic resource allocation based on transmission performance analysis and service classification in wavelength-division-multiplexing optical networks

Cited by 15 publications

References 10 publications

Physical impairment aware scheduling in optical burst switched networks

Physical impairment aware scheduling in optical burst switched networks

Impairment-aware ordered scheduling in dual-header optical burst switched networks

Impact of Optical Switch and Amplifier Characteristics on Physical Impairment-based Wavelength -Routed Optical Networks

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