| BAI Hui-feng,WANG Dong-shan,WANG Li-cheng,WANG Xiang,LIU Hui-min.OSNR comprehensive-awareness model based lightpath control scheme in an OpenFlow controlled all-optical network[J].Optoelectronics Letters,2015,11(4):290-293 |
| OSNR comprehensive-awareness model based lightpath control scheme in an OpenFlow controlled all-optical network |
| Author Name | Affiliation | | BAI Hui-feng | Beijing NARI SmartChip Microelectronics Company Limited, Beijing 102200, China | | WANG Dong-shan | Beijing NARI SmartChip Microelectronics Company Limited, Beijing 102200, China | | WANG Li-cheng | Beijing NARI SmartChip Microelectronics Company Limited, Beijing 102200, China | | WANG Xiang | Beijing NARI SmartChip Microelectronics Company Limited, Beijing 102200, China | | LIU Hui-min | Beijing NARI SmartChip Microelectronics Company Limited, Beijing 102200, China |
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| Abstract: |
| To enhance the communication quality of OpenFlow controlled all-optical networks, an optical signal-to-noise ratio comprehensive-awareness (OSNR-CA) model based lightpath control scheme is proposed. This approach transforms main physical-layer optical impairments into OSNR value, and takes this comprehensive OSNR value of the optical signal along the lightpath into consideration, when establishing the lightpath for the connection request using OpenFlow protocol. Moreover, the proposed scheme makes full advantages of the OSNR monitoring function in each node, and assigns the lightpath according to the comprehensive-OSNR value by extending messages of OpenFlow protocol, in order to guarantee the reliable establishment of the lightpath. The simulation results show that the proposed scheme has better performance in terms of packet loss rate and lightpath establishment time. |
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| This work has been supported by the National High Technical Research and Development Program of China (863 Program) (No.2012AA050804). |
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