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Method and device for user access and content caching of unmanned aerial vehicle communication network

A communication network and content caching technology, applied in the field of UAV communication, can solve problems such as reducing the energy consumption of UAVs

Active Publication Date: 2020-09-01
BEIJING UNIV OF POSTS & TELECOMM
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of this application is to provide a method and device for UAV communication network user access and content caching, to solve the problem that the prior art cannot combine user access and caching deployment so that users can obtain content in a timely and effective manner and reduce UAV energy. Consumed technical issues

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  • Method and device for user access and content caching of unmanned aerial vehicle communication network
  • Method and device for user access and content caching of unmanned aerial vehicle communication network

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Embodiment

[0071] For the ever-increasing network communication user scale and content requirements, under the situation of continuous development of UAV technology, deploying UAV network is a promising and effective solution to solve the communication needs of traditional cellular networks, especially for high-density or communication interrupted area. The purpose of the present invention is to provide a joint optimization method of user access, cache deployment and resource allocation for effectively reducing the total time delay of users in the whole network. For a communication network composed of multiple UAVs with caching functions and ground base stations, users can select the UAVs or base stations to access based on the characteristics of wireless channels and content availability. At the same time, UAVs with caches can According to the real-time access users and their content requests, cache the required high-popularity content, and then according to the user access and cache de...

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Abstract

The present application provides a method and device for user access and content caching of a UAV communication network. The method includes: randomly initializing user access and cache deployment; calculating the best user access under the current cache deployment according to the initialized cache deployment information; calculate the best cache deployment information under the current user access situation; the calculated cache deployment information is used as the input of a new iteration to calculate the best user access and cache deployment information in the next iteration cycle; repeat iterations until reaching the preset The threshold of the number of iterations is obtained to obtain the final optimal user access and cache deployment information; the optimal backhaul link bandwidth allocation information is calculated according to the obtained optimal user access and cache deployment information, and finally the information in the current UAV communication network is obtained. Optimal Access and Caching Solution. The invention can further reduce the content acquisition delay of users in the unmanned aerial vehicle communication network.

Description

technical field [0001] The present application relates to the technical field of unmanned aerial vehicle communication technology, and in particular to a method and device for user access and content caching of an unmanned aerial vehicle communication network. Background technique [0002] With the rapid development of mobile Internet and intelligent terminals, great opportunities have been brought to the network communication control of unmanned aerial vehicle (UAV), and the smoothness and flexibility of the network environment in the process of UAV control Waiting is even more important. The capacity pressure of the cellular network and the unprecedented increase of traffic congestion, especially in areas with highly dense user distribution (such as sports fields, etc.), the introduction of drones into the traditional cellular network can enable users to get closer to the base station than the ground base station. Therefore, capacity expansion can be flexibly realized and...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L12/24H04W24/02H04W52/02
CPCH04L67/12H04L41/0803H04W24/02H04W52/0206H04L67/568Y02D30/70
Inventor 张天魁陈超许文俊曾志民
Owner BEIJING UNIV OF POSTS & TELECOMM
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