基于qos的数据密集型全光网络争用避免方案

2009 2nd IEEE International Conference on Broadband Network & Multimedia Technology Pub Date : 2009-12-04 DOI:10.1109/ICBNMT.2009.5348507

L. Hou, Yueming Lu, Junhua Wang, Yue-Feng Ji, Yi-qiang Hua, Yongmei Sun

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引用次数: 0

摘要

为了在基于qos的数据密集型全光网络中扩展路径计算单元(PCE)，提出了一种新的争用避免方案WLC (wavelength-weight Limited Constraint)。WLC用波长权值表示并发保留概率，PCE根据权值为源节点选择几个较优波长。当权值溢出时，根据QoS级别逐级阻止新的请求。实验结果表明，在各种流量负载下，基于QoS级别的WLC在总阻塞方面的性能优于其他WLC。

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Contention avoidance scheme in QoS-based data intensive all-optical networks

In this paper, a new contention avoidance scheme called WLC (wavelength-weight Limited Constraint) has been proposed to extend a Path Computation Element (PCE) for lightpath establishment in QoS-based data intensive all-optical networks. WLC assigns a wavelength-weight to denote the concurrent reservation probability and then PCE could select several preferable wavelengths according to the weight for source node. It will block the new request step by step according to QoS level when the weight overflows. The experimental results show that WLC based on QoS level performs better in total blocking than the others under various traffic loads.

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2009 2nd IEEE International Conference on Broadband Network & Multimedia Technology

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