Routing in multicast traffic to reduce fragmentation and crosstalk and reduce energy consumption in SDM-EON

Abstract

In order to respond to multicast traffic in Elastic Optical Networks (EON), a light tree is built for each request. The procedure of making and efficiency of the tree can be effective in the waste of spectrum resources. Two types of trees (SPT-RSA and STA-RSA) have been proposed, but none of them are optimal enough. In this paper, based on a new algorithm called Best Tree in Multicast Traffic (BTMT-RSA), several light trees are proposed and the best tree is chosen. Furthermore, a new fragmentation-aware, crosstalk-aware, and energy consumption algorithm (RFECM) is also introduced for multicast traffic in Space Division Multiplexing Elastic Optical Networks (SDM-EON). Both the BTMT-RSA and RFECM algorithms have been compared with similar algorithms in terms of demand blocking probability and bandwidth blocking probability. The performance results show that the proposed algorithms significantly improve the request blocking probability and bandwidth blocking probability.