Reliability enhancement by a joint optimization of elastic optical path allocation methods

Increasing the number of lightpaths for protection accommodated onto an optical fibre network improves reliability of communication services. For this purpose, more optical paths can be accommodated by a spectrally efficient path assignment algorithm, while keeping spectral efficiency of the optical path higher. In this paper, we propose a joint optimization of elastic optical path allocation methods. The simulation results show that the joint optimization algorithm achieves reliability enhancement.