Abstract: The capacity based relative least influence (CBR) wavelength resource assignment algorithm is presented based on the research and analysis of existing algorithms. The CBR analyzes the influence on channel numbers of each paths at each wavelength after current assigning wavelength through defining capacity based influence factor. So the influence about influenced paths capacity from current assigning wavelength more accurately can be described. Simulation shows that the new algorithm will reduce the blocking probability and improve the utilization ratio of network resource.

Key words: resource management, wavelength assignment algorithm, optical transport network, relative least influence