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OBS网络中多优先级业务冲突解决模型研究


摘 要:为了充分认识光突发交换(OBS)网络核心节点中的多业务冲突性能,以OBS网络核心节点为研究对象,采用基于优先级的信道抢占原则,给出了在配置光缓存情况下,多优先级业务的冲突解决模型。结果表明,所提出的模型保证了OBS网络的服务质量,有效解决了以往研究中出现的两个局限性问题,所得参数对OBS网络的实验化建设提供了理论依据。
  关键词:光突发交换; 光缓存; 阻塞率; 服务质量
  中图分类号:TP393
  文献标志码:A
  
  文章编号:1001-3695(2010)02-0636-02
  doi:10.3969/j.issn.1001-3695.2010.02.064
  
  Performance modeling of Multi-traffic contention resolution in OBS network
  
  ZENG Guang-ping, WANG Jiang-qing
  
  (College of Computer Science, South-Central University for Nationalities, Wuhan 430074, China)
  
  Abstract:In order to full realize the performance of multi-traffic contention in OBS network core node, this paper studied the multi-priority traffic contention resolution model in optical buffer equipped OBS core node, which based on the preemptive channel occupied scheme. Several results indicate that, the proposed model not only can support the quality of service of OBS network, but also can resolve two limitations in the previous works effectively. Parameters derived from the model can provide theoretical references to the testing construction of OBS network.
  
  Key words:optical burst switching(OBS); optical buffer; blocking probability; quality of service(QoS) ......
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