Dropping probability reduction in OBS networks: A simple approach

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• 作者：Amr Elrasad^a ; ^{elrasada@tcd.ie" class="auth_mail" title="E-mail the corresponding author} ; Sherif Rabia^b ; ^{sherif.rabia@alex.edu.eg" class="auth_mail" title="E-mail the corresponding author} ; Mohamed Mahmoud^c ; ^{drmmaly@aast.edu" class="auth_mail" title="E-mail the corresponding author} ; Moustafa H. Aly^c ; ^{mosaly@aast.edu" class="auth_mail" title="E-mail the corresponding author} ; Basem Shihada^d ; ^{basem.shihada@kaust.edu.sa" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Slotted time model ; Optical burst switching ; Just in time ; Just enough time ; Blocking probability
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：127
• 期：20
• 页码：9947-9960
• 全文大小：1582 K

文摘

In this paper, we propose and derive a slotted-time model for analyzing the burst blocking probability in Optical Burst Switched (OBS) networks. We evaluated the immediate and delayed signaling reservation schemes. The proposed model compares the performance of both just-in-time (JIT) and just-enough-time (JET) signaling protocols associated with of void/non-void filling link scheduling schemes. It also considers none and limited range wavelength conversions scenarios. Our model is distinguished by being adaptable to different offset-time and burst length distributions. We observed that applying a limited range of wavelength conversion, burst blocking probability is reduced by several orders of magnitudes and yields a better burst delivery ratio compared with full wavelength conversion.