Balancing the load among multiple path leads to the degradation in the all-optical WDM networks. It is always desirable to deliver the entire load on a single optimal path depending upon the current network load status. This paper employs the use of ant colony optimization (ACO) for routing and wavelength assignment (RWA) problem of all-optical WDM networks along with survivability. Our algorithm proactively updates the changes in the network status and finds optimal and sub-optimal paths depending upon the number of free wavelengths available per link along the path from source to destination. When a connection request arrives at a node, the data is routed through the readily available optimal path thereby reducing the setup time. Furthermore, the approach is self-regulating i.e. it automatically adapts to traffic load variations across the network. By simulation results, we showed that our proposed protocol has high throughput and bandwidth utilization.
cited By (since 1996)0; Conference of org.apache.xalan.xsltc.dom.DOMAdapter@6c85f663 ; Conference Date: org.apache.xalan.xsltc.dom.DOMAdapter@4ef3153e Through org.apache.xalan.xsltc.dom.DOMAdapter@38f7c1f0; Conference Code:86336
Dr. T. K. Ramesh, Amrutha, L. N., Madhu, A., Reddy, K. S., and Vaya, P. R., “A proactive and self-regulated ant-based RWA protocol for all-optical WDM networks”, in Proceedings of 2011 International Conference on Process Automation, Control and Computing, PACC 2011, Coimbatore, 2011.