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A cache optimization method for a SCN cellular network supporting MEC

A cache optimization, cellular network technology, applied in data exchange networks, transmission monitoring, digital transmission systems, etc., can solve problems such as limited backhaul link capacity, unfavorable network dense deployment and implementation, etc.

Active Publication Date: 2019-01-25
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Network densification can effectively solve the problem of video streaming, but due to the limited backhaul link capability, it is not conducive to the deployment and implementation of network densification

Method used

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  • A cache optimization method for a SCN cellular network supporting MEC
  • A cache optimization method for a SCN cellular network supporting MEC
  • A cache optimization method for a SCN cellular network supporting MEC

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Embodiment Construction

[0072] Below in conjunction with specific embodiment, further illustrate the present invention, should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various equivalent forms of the present invention All modifications fall within the scope defined by the appended claims of the present application.

[0073] A method for caching optimization of an SCN cellular network supporting MEC, the specific steps are as follows:

[0074] (1) Small base station deployment model modeling, a single-layer network model composed of SCNs equipped with MEC servers with a storage capacity of C, by setting the density as λ s and designated as φ s The independent homogeneous Poisson point process is used to model the small cell deployment model, and the upper limit of the backhaul link bandwidth is W 0 , downlink...

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Abstract

The invention relates to a cache optimization method for an SCN cellular network supporting MEC, When the user finds the required request content, the content can be cached in the MEC server in the SCN, so that the user can accurately obtain the corresponding encoded data when switching between the base stations, the accuracy of data transmission and transmission efficiency are improved, and faster response time is ensured. The invention adopts the genetic algorithm to optimize the throughput expression result value obtained by the particle swarm algorithm and the discrete particle swarm algorithm to obtain the optimal solution, and fully considers the gain balance among the content diversity, the channel selection diversity and the mobile diversity, so as to realize the maximum throughput.

Description

technical field [0001] The present invention relates to a cache optimization method for an SCN cellular network supporting MEC. Background technique [0002] In recent years, with the development of the Internet and the intelligentization and popularization of mobile terminal equipment, the demand for video access has shown an unprecedented increase, and network densification is an effective way to solve the problem of video streaming. However, due to the limitation of backhaul link capacity, it is not conducive to the deployment and implementation of network densification. Mobile edge caching is the most economical solution to the performance bottleneck of network densification. Some researchers optimize storage allocation through location-based models, thereby achieving higher cache utilization, throughput, and probability of successful file transfer. Caching scheme, it is very easy to analyze the impact of movement intensity on the performance of mobile-aware caching sc...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04B17/382H04B17/391H04B17/309
CPCH04L41/0823H04L41/145H04B17/309H04B17/382H04B17/391
Inventor 潘沛生何骄鸿
Owner NANJING UNIV OF POSTS & TELECOMM
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