Software-Defined Elastic Optical Network Node Supporting Spectrum   Defragmentation

doi:10.1364/JOCN.9.000A63

CORC > 北京大学 > 信息科学技术学院

	Software-Defined Elastic Optical Network Node Supporting Spectrum Defragmentation
	Zhu, Paikun ; Li, Juhao ; Wu, Dan ; Chen, Yuanxiang ; Tian, Yu ; Wu, Zhongying ; Ge, Dawei ; Chen, Xin ; Chen, Zhangyuan ; He, Yongqi
刊名	JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
	2017
关键词	Defragmentation Elastic optical network (EON) Software-defined networking (SDN) Superchannel CONVERSION EON
DOI	10.1364/JOCN.9.000A63
英文摘要	The elastic optical network (EON) benefits from improved spectrum utilization, but also faces new challenges in resource allocation. The spectrum continuity and contiguity constraints in routing and spectrum allocation can cause spectrum fragmentation, which would increase traffic blocking. In this paper, we present an EON node structure supporting spectrum defragmentation and a novel software-defined networking (SDN)-based control scheme to resolve the fragmentation problem. In the proposed node, bulk traffic can be spectrally separated and fit into multiple fragments. This way, fragmentation-induced traffic blocking can be mitigated intelligently. Moreover, the SDN control scheme features effective physical-layer abstraction, which is compatible with different defragmentation implementations. We experimentally demonstrate the software-defined EON node on a laboratorial test-bed. Four-wave-mixing-based spectrum multicasting is applied to implement defragmentation, and the corresponding operation procedure of the node Agent is presented. The captured controlling messages and measured signal performance confirm the effectiveness of the solution.; 973 Program of China [2014CB340105]; NSFC [61505002, 61377072, 61275071]; CPSF [2015M580926, 2016T90015]; SCI(E); ARTICLE; 1; A63-A70; 9
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/476254]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zhu, Paikun,Li, Juhao,Wu, Dan,et al. Software-Defined Elastic Optical Network Node Supporting Spectrum Defragmentation[J]. JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING,2017.
APA	Zhu, Paikun.,Li, Juhao.,Wu, Dan.,Chen, Yuanxiang.,Tian, Yu.,...&He, Yongqi.(2017).Software-Defined Elastic Optical Network Node Supporting Spectrum Defragmentation.JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING.
MLA	Zhu, Paikun,et al."Software-Defined Elastic Optical Network Node Supporting Spectrum Defragmentation".JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING (2017).