Method for combining resource allocation and content caching in F-RAN architecture
A technology for content caching and resource allocation, which is applied in the field of joint resource allocation and content caching, can solve problems such as waste of cache resources, inability to guarantee service delay, waste of spectrum resources, etc., and achieve the goal of reducing the pressure on fronthaul links and improving resource utilization Effect
Active Publication Date: 2019-06-28
CHONGQING UNIV OF POSTS & TELECOMM
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The present invention relates to a method for combining resource allocation and content caching in an F-RAN architecture, and belongs to the field of mobile communication. The method comprises the following steps of: in an F-RAN scene, while content service delay and network slice SLA constraint are ensured, carrying out network slice wireless resource allocation and content caching decision by taking maximization of long-term average effectiveness of the system as a target; in each discrete time slot, according to length state of a content request virtual queue of an edge fog node of a current time slot and state information of network slice content transmission capability of a forward link and a wireless access link, allocating proper wireless resources for each network slice dynamicallywithin limitation of wireless resource capacity and cache capacity, and caching the content requested by the network slices at the edge fog node. According to the method and the device, the content service delay and the network slice SLA can be ensured, meanwhile, the forward link pressure is reduced, and the resource utilization rate is increased.
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