A Cellular Heterogeneous Caching Method Based on Group Cooperation

A caching and cellular technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve the problems of huge video traffic, increase base station management and bandwidth burden, and achieve the effect of reducing file volume and energy consumption
CN108322352BActive Publication Date: 2021-01-08BEIJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2021-01-08

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Abstract

The invention discloses a caching method based on intergroup cooperation under a cellular heterogeneous network, which includes establishing a cellular heterogeneous network system model, formulating an energy performance index and generating a problem to be optimized, and using a simulated annealing algorithm to solve the optimization problem. The invention expounds the detailed process of the proposed cellular heterogeneous network caching strategy based on inter-group cooperation, and specifies and analyzes the mechanism of each base station caching text. By adopting the technical solution of the present invention, in the scenario of a cellular heterogeneous network, a network system model is reasonably established, and a corresponding caching strategy is formulated, so that network energy consumption is reduced.
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Description

technical field

[0001] The present invention belongs to the related field of wireless communication, and in particular relates to a cellular heterogeneous caching method based on intergroup cooperation, which divides the traditional wireless network into two layers: a macro base station (Macro Base Station, MBS) and a small base station (Small Base Station, SBS). , expand the capacity of the network, and at the same time use the cache technology to cache the corresponding file fragments in each base station, reducing the amount of files requested by the backhaul, thereby reducing the overall energy consumption of the network.

[0002] technical background

[0003] With the rapid development of modern Internet communication technology, the bandwidth capacity provided by the network is also rapidly enhanced, which makes users tend to support the behavior of video browsing. At the same time, wireless communication technologies are developing rapidly (such as Wi-Fi, 4G, and 5G co...

Claims

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