SDN-based energy-saving scheme for fiber-wireless network

With the development of Mobile Internet and the rapid growth of mobile social communication and mobile video, the network scale has been growing rapidly and the energy consumption is too huge to be ignored. Current estimates indicate that Information and Communication Technology (ICT) is responsible for a fraction of the global energy consumption ranging between 1% and 2%, among which, the consumption in access network is a major component. Currently Fiber-Wireless (FiWi) access network, combining the flexibility, ubiquity and mobility of wireless access network with robustness and high capacity support of the optical access network, is one of the research hotspots. In this paper, combining with the OpenFlow technology in Software Define Network (SDN), we propose a SDN-based energy-saving scheme for FiWi access network, which implements the energy-saving from the global perspective. Simulation results have showed that the proposed energysaving scheme can gain more effective energy-saving, which proves its validity and offer a reference for research and implementation of future integrated networks.