Partial-Failure Segregated Spectrum Assignment for Multicast Traffic in Flex-Grid Optical Networks

被引:0
|
作者
Qiu, Yang [1 ]
机构
[1] Southwest Minzu Univ, Key Lab Elect & Informat Engn, State Ethn Affairs Commiss, Coll Elect & Informat, Chengdu 610041, Peoples R China
基金
中国国家自然科学基金;
关键词
flex-grid; partial-failure segregated; multicast; RESOURCE-ALLOCATION; WAVELENGTH ASSIGNMENT; EFFICIENT; DEFRAGMENTATION; ARCHITECTURE; DESIGN;
D O I
10.3390/photonics9070488
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper, we propose a new algorithm called the partial-failure segregated multicasting routing and spectrum assignment (PFS MRSA) algorithm to improve the service blocking performance of the multicast transmission in flex-grid optical networks (FGONs). By segregating one failure destination leaf-node from a blocked multicast request and accommodating the failure destination leaf-node and the remaining multicast request independently, the success probability of accommodating the originally blocked multicast request can be greatly increased. In this way, the proposed PFS MRSA algorithm can effectively reduce the service blocking probability for the multicast services in FGONs. Simulation results show that the proposed PFS MRSA algorithm achieves significant reduction in service blocking probability when compared with the conventional MRSA algorithms, and such reduction can even reach 100% in some scenarios with low traffic load.
引用
收藏
页数:13
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