We review technologies and architectures for WDM optical IP networks from the viewpoint of capital expenditure and network energy consumption. We show how requirements of low cost and low energy consumption can influence the choice of switching technologies as well as the overall network architecture.
© 2009 IEEE
Rodney S Tucker, Rajendran Parthiban, Jayant Baliga, Kerry Hinton, Robert W. A. Ayre, and Wayne V. Sorin, "Evolution of WDM Optical IP Networks: A Cost and Energy Perspective," J. Lightwave Technol. 27, 243-252 (2009)