A Seed Node Selection Method for Offloading Cellular Traffic Through Opportunistic Mobile Networks

A mobile network, seed node technology, applied in wireless communication, electrical components, etc., can solve the problem of not considering the freshness of content

Active Publication Date: 2021-07-27
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, none of them considered the freshness of the content

Method used

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  • A Seed Node Selection Method for Offloading Cellular Traffic Through Opportunistic Mobile Networks
  • A Seed Node Selection Method for Offloading Cellular Traffic Through Opportunistic Mobile Networks
  • A Seed Node Selection Method for Offloading Cellular Traffic Through Opportunistic Mobile Networks

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Experimental program
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Embodiment

[0062] figure 1 An example of a data offload network scenario based on an opportunistic mobile network is given. A content is generated at time 0, and the content provider needs to distribute it to all nodes in the network within the lifetime of the content. At time 0, content is injected via the cellular interface into a fraction S ∈ V (initial seeds) of the network, which become active nodes. Then, when the active node comes into contact with the inactive node, the content is transmitted by means of opportunistic communication.

[0063] In the experimental evaluation, according to the optimization problem, the overall content utility value U(S) is used as the performance index. The proposed greedy and decay-based seed selection methods are compared with random seed selection methods, where the initial seed is chosen randomly. Next, Greedy is used to represent the greedy seed selection method, Decay is used to represent the decay-based seed selection method, and Random is ...

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Abstract

The seed node selection method of offloading cellular traffic through opportunistic mobile network, passing through the cellular network to some selected initial seeds in the mobile network, and then disseminating for free by using opportunistic communication, all nodes in the mobile network can access the cellular network ; Find the optimal number of initial seeds to maximize the overall content utility value, taking into account the cost of direct delivery over the cellular network and the freshness of the delivered content; define the content utility value gain, and calculate the delivery over the cellular network Optimal number of copies of content k ; Based on the seed selection method, to find the optimal number of initial seeds to maximize the overall content utility value of the nodes in the network. The method of the present invention considers the freshness of the content and the transmission cost from the cellular network to the initial seed. In order to solve the utility optimization problem, two seed selection methods are proposed to find the optimal number of initial seeds so that the overall content utility value of the nodes in the network maximize.

Description

technical field [0001] The invention proposes a seed node selection method for unloading cellular traffic through an opportunistic mobile network, and relates to the technical field of opportunistic mobile network communications. Background technique [0002] In recent years, with the rapid popularization of mobile devices, such as iPads, laptops, and smartphones, mobile Internet services are experiencing explosive growth and providing various applications, including video, audio, and images. Cellular networks are the most popular way to provide mobile internet service today, especially with the advent of 5G networks. However, the explosive growth of mobile services and user demand is likely to overload and congest cellular networks in the near future. Especially during peak hours or urban areas, mobile users may face extreme situations in terms of low network bandwidth, missed voice calls, poor signal coverage, etc. Therefore, there is an urgent need for mobile network op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/04H04W40/12H04W40/22
CPCH04W40/04H04W40/12H04W40/22
Inventor 周欢张振宇吴桐陈鑫江恺
Owner CHINA THREE GORGES UNIV
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