Multicast Routing Method in Optical Switching Networks.

In realization of high-speed and broadband networks of the next century, expectations are toward optical switching and a linear lightwave network (LLN) is proposed as one of the possibilities. Using LLNs, this paper proposes a multicast routing system in which a tree structure is formed with no loop inside the network. In this way, the waste of bandwidth caused by transmission of signals to unintended destinations is avoided. The scheme in which the tree is settled dynamically in case of generation of a call is proposed and its function is evaluated through simulations. As the results, the possibility of the efficient use of the unused links and realization of call setup control of equitable terminals are shown. Further, because of inherent LLN characteristics, the generated call blockings are small and superior performance is achieved in comparison to the previously proposed methods. [ABSTRACT FROM AUTHOR]