Optical WDM Network Planning Using Heterogeneous Multi-granularity OXCs

Multigranular optical WDM network aims to reduce network cost by grouping multiple wavelengths and then switching those wavelengths together at waveband or fiber levels. To configure such multi-granular network, we have two choices- homogeneous network and heterogeneous network. The former applies only a single type of optical cross connect (OXC) while the latter allows different types of OXCs. Due to the demands varies and change asymmetrically geographically, networks with heterogeneous OXC nodes is especially suitable for placing best switching types at different location. In this paper, we aim at the design of an algorithm to solve the network planning problem in optical network with heterogeneous multigranularity OXCs. The planning program determines not only the switching granularity for each node but also determine the routing and wavelength assignments to satisfy the given demands. The contributions of the paper are four folded. First, we propose a graph model to represent the ...

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Hong-Hsu Yen, Frank Yeong-Sung Lin, Steven S. W. Lee, Hsiao-Tse Chang, Biswanath Mukherjee
• Keywords: Communications, ICC 2007, Network Cost, Network Planning Problem, Optical Wdm Network