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Distance-Adaptive Multilayer Traffic Grooming Approaches in IP-Over-Flexible Bandwidth Optical Networks

A distance-adaptive multilayer traffic grooming approach (MLTGA) is proposed to improve spectrum efficiency and to save power consumption and both IP-layer and optical-layer traffic grooming approaches (ILTGA and OLTGA) are introduced for comparison. Simulation results show that our proposed MLTGA has a better blocking probability and power consumption compared to ILTGA and OLTGA.