The fiber‐wireless (FiWi) access network is a very promising solution for next‐generation access networks. Because of the different protocols between its subnets, it is hard to globally optimize the operation of FiWi networks. Network virtualization technology is applied to FiWi networks to realize the coexistence of heterogeneous networks and centralized control of network resource. The existing virtual resource management methods always be designed to optimize virtual network (VN) request acceptance rate and survivability, but seldom consider energy consumption and varied requirements of quality of service (QoS) satisfaction, which is a hot and important topic in the industrial field. Therefore, this paper focuses on the QoS‐aware cross‐domain collaborative energy saving mechanism for FiWi virtual networks. First, the virtual network embedding (VNE) model, energy consumption model, and VNE profit model of FiWi networks are established. Then, a QoS‐aware in‐region VN embedding mechanism is proposed to guarantee service quality of different services. After that, an underlying resource updating mechanism based on energy efficiency awareness is designed to realize low‐load ONU and wireless routers co‐sleep in FiWi networks. Finally, a QoS‐aware re‐embedding mechanism is presented to allocate proper resource to the VNs affected by the sleeping mechanism. Especially for video VNs, a re‐embedding scheme which adopts traffic splitting and multipath route is introduced to meet resource limitation and low latency. Simulation results show that the proposed mechanism can reduce FiWi network's energy consumption, improve VNE profit, and ensure high embedding accepting rate and strict delay demand of high‐priority VNs.

中文翻译：

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FiWi虚拟网络的QoS感知跨域协作节能机制

光纤（FiWi）接入网络是下一代接入网络非常有希望的解决方案。由于其子网之间的协议不同，因此难以全局优化FiWi网络的运行。将网络虚拟化技术应用于FiWi网络，以实现异构网络的共存和网络资源的集中控制。现有的虚拟资源管理方法总是设计用于优化虚拟网络（VN）的请求接受率和生存能力，但很少考虑能耗和服务质量（QoS）满意度的各种要求，这是工业领域中的热门话题。 。因此，本文着重于针对FiWi虚拟网络的QoS感知跨域协作节能机制。第一，建立了FiWi网络的虚拟网络嵌入（VNE）模型，能耗模型和VNE利润模型。然后，提出了一种QoS感知的区域VN嵌入机制，以保证不同服务的服务质量。此后，设计了基于能效意识的基础资源更新机制，以实现低负载ONU和无线路由器在FiWi网络中共同睡眠。最后，提出了一种QoS感知的重新嵌入机制，以便为受睡眠机制影响的VN分配适当的资源。特别是对于视频VN，引入了采用流量分割和多路径路由的重新嵌入方案，以满足资源限制和低延迟。仿真结果表明，该机制可以降低FiWi网络的能耗，提高VNE利润，