Chinese Optics Letters, 2011, 9 (7): 070602, Published Online: May. 18, 2011  

Impairment-aware QoS provisioning in dual-header OBS networks

Author Affiliations
1 College of Computer Science and Engineering, Hefei University of Technology, Hefei 230009, China
2 Department of Computer Science and Engineering, Wright State University, 3640 Colonel Glenn Highway, Dayton, Ohio, 45435, USA
Abstract
Signal degradation due to physical impairments may result in unacceptable bit-error rates of received signals at the destination. Based on earlier work, we study the impairment-aware quality of service (QoS) provisioning problem in dual-header optical burst switching (OBS) networks that employ two control packets for each data burst. At an OBS node, the proposed algorithm schedule bursts for transmission by searching for available resources using admission control and preemption. The algorithm also verifies signal quality. Simulation results show that this algorithm is effective in providing QoS support in OBS networks while considering physical impairment effects.

Yuqi Fan, Bin Wang, Lian Li. Impairment-aware QoS provisioning in dual-header OBS networks[J]. Chinese Optics Letters, 2011, 9(7): 070602.

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