PI-OBS: a parallel iterative optical burst scheduler for OBS networks

Pavón‐Mariño, Pablo; Veiga-Gontán, J.; Ortuno-Manzanera, A.; Cerroni, Walter; García-Haro, Joan

doi:10.1109/hpsr.2009.5307426

Cited by 3 publications

(1 citation statement)

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“…Our previous work has been extended with a new burst assembly and scheduling technique in simultaneous multipath transmission for burst loss recovery in Optical Burst Switching (OBS) networks. Pavon-Marino et al (2009) have proposed Parallel Iterative Optical Burst Scheduler (PI-OBS) for OBS Networks. In PI-OBS, all the headers received during a given time window are jointly processed to optimize the delay and output wavelength allocation using void filling techniques and allowing traffic differentiation.…”

Section: Previous Workmentioning

confidence: 99%

New Burst Assembly and Scheduling Technique for Optical Burst Switching Networks

Kavitha¹,

Palanisamy²

2013

Journal of Computer Science

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The Optical Burst Switching is a new switching technology that efficiently utilizes the bandwidth in the optical layer. The key areas to be concentrated in Optical Burst Switching (OBS) networks are the burst assembly and burst scheduling i.e., assignment of wavelengths to the incoming bursts. This study presents a New Burst Assembly and Scheduling (NBAS) technique in a simultaneous multipath transmission for burst loss recovery in OBS networks. A Redundant Burst Segmentation (RBS) is used for the burst assembly. In our proposed algorithm, the proper policy is selected based on the priority of each burst, the length of each burst and the length of the redundant data. After assembling the burst, the burst scheduler algorithm schedules the burst. This algorithm is responsible for the output wavelength and contention-free fiber delay lines to switch every burst payload to its target output fiber. The OBS network simulator (nOBS) patch in NS-2 is used to simulate our network. NBAS technique improves the quality of service constraints like delivery ratio, delay compared to RBS technique. From the simulation results, it is shown that our proposed technique New Burst Assembly and Scheduling (NBAS) optimizes the delay and overhead through the best burst assembly and scheduling thereby increasing the delivery ratio

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Section: Previous Workmentioning

confidence: 99%