Wavelength selection based on wavelength availability in multi-fiber WDM networks

This paper proposes a wavelength selection scheme based on wavelength availability in multi-fiber WDM networks. In multi-fiber WDM networks, each link consists of multiple optical fibers. The proposed scheme collects information on wavelength availability on fibers along a route between a source node and a destination node. Then the proposed scheme selects a wavelength based on the collected information in such a way that it makes wavelength usage in links smooth. By doing so, the generation of bottleneck links is suppressed. Through simulation experiments, we show that the proposed scheme efficiently improves blocking probability in multi-fiber WDM networks.