PAHON: Power-Aware Hybrid Optical Network

Abstract Power consumption of a network, as one of the important concerns in network design, increases when the size and traffic load of the network raises. In this article, a green hybrid optical network namely Power Aware Hybrid Optical Network (PAHON) is proposed. PAHON considers some implementation criteria including proper level of QoS, the optimal use of network resources, domain of network performance, and power consumption of the network. The proposed method considers four switching mechanisms (OCS, long-OBS, short-OBS and OPS) for providing desirable QoS and it could reach to high domain of performance by providing the ability for edge and core nodes to select the proper switching mechanism. PAHON can also decrease the power consumption of the network in comparison with electronic-optical networks and all electronic networks by using optical switches in core nodes. The results of simulations justify the optimal resource utilization and efficient power consumption of our proposed method.