Fragmentation-Aware Routing and Spectrum Allocation Scheme Based on   Distribution of Traffic Bandwidth in Elastic Optical Networks

doi:10.1364/JOCN.7.001064

CORC > 北京大学 > 信息科学技术学院

	Fragmentation-Aware Routing and Spectrum Allocation Scheme Based on Distribution of Traffic Bandwidth in Elastic Optical Networks
	Chen, Xin ; Li, Juhao ; Zhu, Paikun ; Tang, Ruizhi ; Chen, Zhangyuan ; He, Yongqi
刊名	JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING
	2015
关键词	Elastic optical network Routing and spectrum allocation PATH NETWORK OFDM ARCHITECTURE ASSIGNMENT SYSTEMS FIBER
DOI	10.1364/JOCN.7.001064
英文摘要	Empowered by multirate transmission and bandwidth-variable switching technology, elastic optical networks (EONs) enhance spectrum utilization efficiency and increase network capacity to satisfy the rapid growth of Internet traffic. Routing and spectrum allocation (RSA) is one of the key elements in realizing EONs. However, previous RSA schemes with superior performance have had the drawback of high computational complexity. In this work, we focus on achieving superior RSA performance with reduced computational complexity. We first propose a dynamic network resource evaluation method that takes into account both the distribution of traffic bandwidth and the spectrum blocks' carrying capability. Based on this, we introduce traffic-based fragmentation-aware concepts into the RSA steps. In the routing step, we propose a low-complexity fragmentation-aware load-balanced shortest path routing scheme and a modified fragmentation-aware load-balanced k-shortest-path routing scheme. In the spectrum allocation step, we propose an efficient traffic-based fragmentation-aware spectrum allocation scheme. Simulation results prove that the proposed RSA schemes can reduce the computational complexity significantly and provide network accommodation that is comparable to and traffic blocking probability that is similar to existing dynamic RSA schemes.; National Basic Research Program of China (973 Program) [2014CB340105, 2014CB340101]; National Natural Science Foundation of China (NSFC) [61377072, 61275071, 61205058]; SCI(E); EI; ARTICLE; juhao_li@pku.edu.cn; 11; 1064-1074; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/435879]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Chen, Xin,Li, Juhao,Zhu, Paikun,et al. Fragmentation-Aware Routing and Spectrum Allocation Scheme Based on Distribution of Traffic Bandwidth in Elastic Optical Networks[J]. JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING,2015.
APA	Chen, Xin,Li, Juhao,Zhu, Paikun,Tang, Ruizhi,Chen, Zhangyuan,&He, Yongqi.(2015).Fragmentation-Aware Routing and Spectrum Allocation Scheme Based on Distribution of Traffic Bandwidth in Elastic Optical Networks.JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING.
MLA	Chen, Xin,et al."Fragmentation-Aware Routing and Spectrum Allocation Scheme Based on Distribution of Traffic Bandwidth in Elastic Optical Networks".JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING (2015).