Dynamic fragments awareness based virtual network mapping strategy of elastic optical networks |
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Authors: | BAI Huifeng CHEN Wenbin LIU Lin ZHANG Jie and YE Guangxi |
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Affiliation: | Beijing SmartChip Microelectronics Technology Company Limited, Beijing 102200, China,Beijing SmartChip Microelectronics Technology Company Limited, Beijing 102200, China,State Grid Dalian Electric Power Supply Company, Dalian 116011, China,State Grid Sichuan Electric Power Research Institute, Chengdu 610041, China and SCIG Information Industry Group Co., Ltd., Chengdu 610041, China |
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Abstract: | As virtual networks services emerge increasingly with higher diversification, the issue of spectrum fragments presents great challenge to the elastic optical networks (EON), especially under heaven services burdens. Aimed to solve this problem, this article proposes a dynamic fragments awareness based virtual network mapping (DFA-VNM) strategy of elastic optical network. In this proposed approach, the dynamic fragments awareness model of it is established, which takes available bandwidth demand and spectrum fragment degree into consideration. Moreover, the dynamic fragments awareness based virtual network mapping strategy makes full advantage of real-time fragments awareness result to conduct virtual network service mapping operation with less fragments and lower blocking rate. Testing results show that the proposed approach is able to improved services supporting ability of EON. |
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