Operation Cost Model based Configuration Management Policy in OBS Networks

In OBS networks, the one-way reservation strategy causes the blocking problem by the contention in a resource reservation. In order to solve this problem, we propose the configuration management policy based on operation cost model. We develop the cost model based on DEB according to the network status information changed by guaranteed QoS, and develop the criteria for the configuration management by providing the alternate path using bounded range of the sensitivity of this cost. Finally, throughout the theoretical and experimental analysis, we can obtain that our proposed scheme has good performance in an aspect of blocking rate and outperforms the conventional scheme in complexity as results.