Virtual Source-Based Minimum Interference Path Multicast Routing with Differentiated QoS Guarantees in the Next Generation Optical Internet

摘要

WDM networks using wavelength routing are considered to be potential candidates for the next generation backbone networks. One of the critical issues of the future network is a provision of proper QoS guarantees for a wide variety of multimedia multicast service. This paper concerns with the problem of optical multicast routing with QoS guarantees in WDM networks. Using Virtual Source (VS) nodes, we proposes a new MCRWA method for a multicast session, combining the VS-based tree method with Multi-Wavelength Minimum Interference Path Routing (MW-MIPR). This paper also proposes a QoS MCRWA method in combination with QoS constraints and a recovery strategy based on the differentiated QoS service model to provide QoS guarantee for a wide variety of multicast application in the next generation optical networks.