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	Shared protection and fast protection for dynamic multicast sessions in WDM networks
	Yu Qing ; Ge Ning ; Dong Zai-wang
	2010-05-06 ; 2010-05-06
关键词	Practical/ matrix algebra multicast communication optical fibre networks probability telecommunication network topology wavelength division multiplexing/ dynamic multicast session WDM network wavelength division multiplexing link-based optimized shared-protection algorithm LB-OSPM Hamiltonian preconfigured cycle wavelength reservation matrix COST239 network topology blocking probability/ B6260F Optical fibre networks B6260M Multiplexing and switching in optical communication B6150P Communication network design, planning and routing B0210 Algebra B0240Z Other topics in statistics
中文摘要	Two algorithms are proposed against single span failure in wavelength division multiplexing (WDM) networks. One is called link-based optimized shared-protection algorithm (LB-OSPM). The other is a protection algorithm (HPC) based Hamiltonian preconfigured cycle (p-cycle). LB-OSPM introduces wavelength usage matrix and wavelength reservation matrix to record the detailed usage of wavelengths reserved so as to allow different protection paths of working trees to share reserved wavelengths. HPC takes advantages of single Hamiltonian p-cycle to cover all working links in the network to attain source efficiency and fast protection. The topology of COST239 to calculate the network blocking probability of these two algorithms is used under various conditions of wavelength resources and network loads and therefore they can be compared with an existing cost-effective algorithm, optimal path-pair-based shared disjoint paths algorithm (OPP-SDP). The simulations demonstrate that with the algorithms lower blocking probability can be gained while assuring a 100% restorability rate in the case of single span failure.
语种	中文 ; 中文
出版者	Beijing Univ. of Posts and Telecommunications ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11299]
专题	清华大学
推荐引用方式 GB/T 7714	Yu Qing,Ge Ning,Dong Zai-wang. Shared protection and fast protection for dynamic multicast sessions in WDM networks[J],2010, 2010.
APA	Yu Qing,Ge Ning,&Dong Zai-wang.(2010).Shared protection and fast protection for dynamic multicast sessions in WDM networks..
MLA	Yu Qing,et al."Shared protection and fast protection for dynamic multicast sessions in WDM networks".(2010).

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