An improved scheduled traffic model utilizing bandwidth splitting in elastic optical networks

What is it about?

Bandwidth hungry applications such as e-science, grid computing, and collaborative learning through audio-visual aids often require guaranteed availability of resources specifically, the network bandwidth. For this reason, consumers state the bandwidth requirement along with the starting and ending times of the service ahead of the time to the network operator. We have modeled such service requests as scheduled lightpath demands (SLDs) under the scheduled traffic model (STM) in elastic optical networks (EONs). To the best of our knowledge, this is the first work concerning the provisioning of SLDs in EONs. The proposed strategies facilitate network planning for the network operator such that the revenue could be increased by serving a large number of SLDs with the limited amount of spectral resources. The key is to split the service requests (i.e., SLDs) which are voluminous in terms of their requested bandwidth into multiple flows. All the flows belonging to an SLD are routed either via the same path or may use different paths to route each flow.

Featured Image