多光纤WDM网中的QoS路由算法

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Abstract Basing on the DOS model’s aggregating ability, the client layer’s services with different QoS requirements can be mapped directly into the optical channel. Then the different QoS requirements of the client layer’s services can be reflected by the different priorities of the connection request at the border optical node in a DOS domain. A wavelength graph method is presented in the multi-fiber WDM optical transport network to reduce the blocking probability of the connection request. Two optical QoS routing strategies, concentrating method and equalizing method, are proposed. The two methods are compared by simulation results of the network performance in different dynamic traffic load situations.

Key words： Multi-fiber WDM transport network Differentiated optical service model Wavelength graph Wavelength channel Quality of service routing algorithm

Received: 25 September 2000

PACS:

TN913.24

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	He Rongxi
	Li Lemin
	Xu Shizhong

Cite this article:

He Rongxi,Li Lemin,Xu Shizhong. QoS routing algorithm in multi-fiber WDM transport networks[J]. , 2002, 24(11): 1589-1596 .

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http://jeit.ie.ac.cn/EN/ OR http://jeit.ie.ac.cn/EN/Y2002/V24/I11/1589