Transponder Impact on Power and Spectral Efficiencies in WDM Links Based on 10-40-100 Gbps Mixed-Line Rates

It has been proved that Mixed-Line Rate (MLR) could in a cost-efficient manner scope with heterogeneity of constantly increasing traffic demands in core networks. In the same time, the energy efficiency of a Wavelength Division Multiplexing (WDM) transmission system of a MLR solution depends on the number factors (such as energy efficiency of transponders and regenerators, spectral efficiency, length of transmission distance etc.) and number of wavelengths operating with the particular bitrate and modulation format is one of them. Hence, this papers aims at exploring the power efficient 10 Gbps, 40 Gbps and 100 Gbps wavelength assignment strategy as well as the minimum optical bandwidth required to allocate all wavelengths