Fog-assisted Caching Employing Solar Renewable Energy for Delivering Video on Demand Service

03/25/2019
by   Mohamad Bin Abdull Halim, et al.
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This paper examines the reduction in brown power consumption of transport networks and data centres achieved by caching Video-on-Demand (VoD) contents in solar-powered fog data centers with Energy Storage Devices (ESDs). A Mixed Integer Linear Programming (MILP) model was utilized to optimize the delivery from cloud or fog data centres. The results reveal that for brown-powered cloud and fog data centres with same Power Usage Effectiveness (PUE), a saving by up to 77 demands from fog data centres. With fully renewable-powered cloud data centres and partially solar-powered fog data centres, savings of up to 26 achieved when considering 250 m2 solar cells. Additional saving by up to 14 can be achieved with ESDs of 50 kWh capacity.

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