This paper examines the reduction in the non-renewable power consumption of transport networks including core, metro and access layers when Video-on-Demand (VoD) content is cached in solar-powered fog data centres with Energy Storage Devices (ESDs). The effects of considering optical bypass routing and Mixed Line Rate (MLR) in the core network, the availability of solar renewable energy in the access network, and optimising the use of ESDs were addressed. A Mixed Integer Linear Programming (MILP) model that considers the above factors was developed to optimise delivering VoD content from cloud data centres in the core network or fog data centres in the access network.

中文翻译：

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雾辅助缓存采用太阳能可再生能源和能量存储设备进行视频点播服务

本文研究了当视频点播 (VoD) 内容缓存在带有能量存储设备 (ESD) 的太阳能雾数据中心时，传输网络（包括核心层、城域层和接入层）的不可再生功耗的降低。解决了在核心网络中考虑光旁路路由和混合线路速率 (MLR)、接入网络中太阳能可再生能源的可用性以及优化 ESD 使用的影响。考虑到上述因素开发了混合整数线性规划 (MILP) 模型，以优化从核心网中的云数据中心或接入网中的雾数据中心传送 VoD 内容。