Scalable, Optimal and Capacity Efficient Survivable Technique (SOCEST) for Optical Network

Amit Kumar Garg
2017 International Journal of Future Generation Communication and Networking  
It is seen that preplanned protection cycles (p-cycles) have emerged as a viable scheme for recovery from failure in mesh networks. Though, the benefits of p-cycles are well established, yet there has been no systematic analysis of how much bandwidth they consume in comparison with the classical shared link or with path protection schemes. It is observed that, even enumerating a huge number of cycles, not necessarily a guarantee for obtaining good quality solutions with the Integer Linear
more » ... mming (ILP) models. In the present work, a scalable, optimal and capacity efficient survivable technique (SOCEST) has been formulated and proposed which outperforms the existing ones in terms of capacity efficiency as well as in terms of traffic recovery speed. The proposed new framework is found to be efficient than existing schemes since it adds one or two links rather than constructing a new p-cycle. Moreover, it is faster w.r.t to provisioning since it does not require finding new cycles in the network and this makes it more beneficial for supporting dynamic traffic. Extensive experiments have been conducted for comparison. Simulation results show that the presented work outperforms the previous methods in terms of capacity efficiency as well as redundancy.
doi:10.14257/ijfgcn.2017.10.8.04 fatcat:rqq2m7rigrhbbnikry4iqixlci